In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

What is the next number in this series?

4,12,84,3612....

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?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

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

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?