Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Decode the movie name from the below picture?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

What question can you never answer yes to?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?