Riddle

[tamu33]

So I was bored today and found a riddle that stumped me for a bit. So I thought I might challenge everyone. And if you solve it put up your own riddle.

Two friends meet after they have not seen each other for a long time

Friend A: How've you been?

Friend B: Good. I'm married, have two kids.

Friend A: How old are they?

Friend B: They both are under 7, and if you multiply their ages, the result
will be equal to the number of birds on that tree.

Friend A: Not enough information.

Friend B: Older one looks just like his mother.

Friend A: Now I know their ages exactly.

HOW OLD ARE THE KIDS? THERE IS ONLY ONE ANSWER

[Gregg Pathiakis]

So I was bored today and found a riddle that stumped me for a bit. So I thought I might challenge everyone. And if you solve it put up your own riddle.

Two friends meet after they have not seen each other for a long time

Friend A: How've you been?

Friend B: Good. I'm married, have two kids.

Friend A: How old are they?

Friend B: They both are under 7, and if you multiply their ages, the result
will be equal to the number of birds on that tree.

Friend A: Not enough information.

Friend B: Older one looks just like his mother.

Friend A: Now I know their ages exactly.

HOW OLD ARE THE KIDS? THERE IS ONLY ONE ANSWER

I am usually good at riddles but I can't see how there is possibly enough information given! Since we don't know how many birds are on the tree, we are left with both being under 7. Looks like his mother? Doesn't help. OK... I am going to go crazy till I hear the answer!

[Tim Whitehead]

I'm with Gregg. This doesn't make sense...

[DanGenck]

These riddles are usually much more complicated and involve 3 children and force you to remember factoring numbers from high school. This question is a little different, however...

Since the older one looks like his mother, we know that the numbers are not the same (there is an older child, we cannot have two 3 year olds or something like that).

The one man says, "The ages, if multiplied, equal the number of birds in that tree" and the other man looks at the tree and sees that there are no birds. He then says, "Uh, I need more information because there are no birds..."

The man with the children says, "The older one looks like his mother" meaning the other child is not yet born and they do not know what he looks like.

Child #1- Under 7 but over 1
Child #2- Not yet born, not yet able to look like the mother



Of course, I may be wrong, but if I am right? Here is my riddle to pass on-

You approach two talking doors. One door leads to the City of Truth, while the other door leads to the City of Liars. You do not know which door is which.

You are able to ask only one question to determine which door is which. The door that leads to the City of Liars always speaks lies, while the door that leads to the City of Truth always speaks the truth.

You want to go to the City of Truth. What question do you ask to determine which door leads to the City of Truth?

[lil lady lax fan]

Two doors riddle:

Here's the question I would ask: Am I (Insert name here)? The door that answers no would be lying.

[Gregg Pathiakis]

I am just thinking about your answer to the first one quick, but I don't buy it. Yes, I agree they are different ages, but they can be any two ages. 3 and 2, 6 birds in tree. 4 and 1, 5 birds in tree. Maybe I am just an idiot.

I used to know the answer to the second one... different form of the question.. but I am too tired to think right now. But I just found my favorite current thread!

[PNWLaxer]

I remember the door riddle from HS. I think the answer is to ask any question you and the doors already know the answer to.

ie Ask "Are my eyes blue?" knowing that your eyes are blue.

If the door says yes you know he is telling the truth
If the door says no you know he is lying

Similar to what lil lady lax said

[DanGenck]

The answer I had was contingent on the fact that you can only ask the doors which one they are and not anything about yourself or the world (they would not know what blue is or anything like that...).

[DanGenck]

I am just thinking about your answer to the first one quick, but I don't buy it. Yes, I agree they are different ages, but they can be any two ages. 3 and 2, 6 birds in tree. 4 and 1, 5 birds in tree. Maybe I am just an idiot.

I used to know the answer to the second one... different form of the question.. but I am too tired to think right now. But I just found my favorite current thread!

Any number of birds in the tree does not make sense because we are told that there is not enough information, meaning there are no birds in the tree. If a child was six and one was 0, the multiple of the ages would equal zero birds in the tree.

[mholtz]

Here's my take on it.

There are 4 birds in the tree. How do you know?

The reason the person "didn't have enough information" was because he didn't know if the guy had twins and they were the same age. When he said there was an older one, he knew that they weren't the same age.

Therefore, there are only 2 pairs of numbers, under 7, which can multiply to the same value with one of them being "the same".

2 and 2 (if they were twins)
and
1 and 4 <- the correct answer.

[Gregg Pathiakis]

I am just thinking about your answer to the first one quick, but I don't buy it. Yes, I agree they are different ages, but they can be any two ages. 3 and 2, 6 birds in tree. 4 and 1, 5 birds in tree. Maybe I am just an idiot.

I used to know the answer to the second one... different form of the question.. but I am too tired to think right now. But I just found my favorite current thread!

Any number of birds in the tree does not make sense because we are told that there is not enough information, meaning there are no birds in the tree. If a child was six and one was 0, the multiple of the ages would equal zero birds in the tree.

Here's my take on it.

There are 4 birds in the tree. How do you know?

The reason the person "didn't have enough information" was because he didn't know if the guy had twins and they were the same age. When he said there was an older one, he knew that they weren't the same age.

Not enough information could also mean, for example, there are 6 birds in the tree. That could make the kids 6 and 1, 3 and 2.

[Tim Gray]

Before scrolling down:

Are they 4 and 1?

[Tim Gray]

You want to go to the City of Truth. What question do you ask to determine which door leads to the City of Truth?

I would ask if both doors lead to the same city. Then go through the door that says no.

[tamu33]

Matt Holtz got it right... and he explained it the way it was supposed to be done.

(twins) (not twins - all factors of possibilities)
1 x 1 = 1 -- no factors

2 x 2 = 4 -- 4 x 1 -( correct answer )

3 x 3 = 9 -- 9x1 - (over 7, so no good)

4 x 4 = 16 -- 2 x 8; 1 x 16 (all over 7, so no good)

5 x 5 = 25 -- 25 x 1 (over 7, so no good)

6 x 6 = 36 -- 3 x 12, 9 x 4, 36 x 1, 2 x 18 (all over 7, so no good)

See, we can figure it out because the man was torn between twins and not twins. When the extra info came, we found out that they were not twins. So all we have to do is see what set of numbers are under 7 in their product and in their factors and also when they are twins.... We only have one set that follows those rules. and it is 4.... so the aswer is 4 and 1.

[tamu33]

City of truth seemed to be answered so here is another one... sorry it took so long... on the weekends I am not on here as much.


What row of numbers comes next?

1
11
21
1211
111221
312211
13112221

This is somewhat tough... it took me a few wrong answers before I got it.