How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

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?

What can go through glass without breaking it?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Who is that with a neck and no head, two arms and no hands? What is it?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59