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 mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Find the next number in the sequence

5 12 24 36 ?

Where do you go to learn how to make ice cream?

Solve the counting riddle by identifying the number of triangles in the given picture.