Rectify the following equality 101 - 102 = 1 by moving just one digit.

How can you take 2 from 5 and leave 4?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

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?

Can you find out the remainder when 3^300 is divided by 5?

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

When did John make this statement?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Buy me, smell me or deliver me, I do not change.

Who am I?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?