Replace the question mark with the correct number.

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

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

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Can you tell a 3D object that has just two surfaces?

Can you solve the below rebus?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

I’m tall when I’m young, and I’m short when I’m old. What am I?