What is black when you buy it, red when you use it, and gray when you throw it away?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?

Can you count the number of triangles in the picture below?

Can you start the fire using two pieces of wood?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?