Can you move 2 matchsticks to form four equal sized squares.

What happened when the wheel was invented?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

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

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

What number divided by 4 is the same as that number minus 4?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

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

There is a place where if I stand up straight, I will still be considered sideways.