What is the fastest way to double your money?

What month of the year has 28 days?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

Why is the Hole below a Lock?

There are forty elephants and they have forty-fore heads. How can this be possible?

Rearrange the letters in "new door" to make one word.

What is the below Rebus indicate?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What does Alexander the Great and Winnie the Pooh have in common?