You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Why do we preferably have round manhole covers and not square ones?

Can you count the number of triangles in the given picture?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you count the number of triangles in the given figure?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)