What work can one never finish?

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?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

Solve the riddle below:

If a Chicken says, 'All chickens are liars" is the chicken telling the truth?

Find out the missing number in the picture attached:

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

What is both possible and impossible at the same time?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

What will you call your mother's brother's brother-in-law?