French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Which city is three-fifths chick two third cat and 50% goat?

What you cannot hold but it is yours?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

What has no start, end, or centre?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?