You need to move three matchsticks to form three squares. Can you do it?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

What is the fastest way to double your money?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Find the next number in the series below.

6 18 270 72090 ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

What goes up but never comes down?