Before Mount Everest was discovered, what was the highest mountain in the world?

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

Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?

I have teeth but i don't bite. Who Am I ?

Suppose you are a girl candidate and sitting in an interview. Suddenly the interviewer asks you, 'What if one morning you wake up and find out that you are pregnant?

How will you reply to such a question?

Daniel walks into a movie theatre. While in the movie, he suddenly smiles delightfully. About a couple of minutes later, he seems shocked. He walks out of the theatre, goes to a bridge and jumps over the edge killing himself.

Why did he do it?

Note: Think Lateral

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Can you spot the hidden girl in the picture below?