How many times can you subtract the number two from the number fifty?

If eleven plus two equals one, what does nine plus five equal?

Can you decipher the two rows to find the hidden word?

Count the number of triangles in the below picture?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

What has a bottom at the top?

A man dies of old age on his 25 birthday. How is this possible?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?