An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

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?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

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

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

The centre of the third figure is empty. What digit should fit inside?

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