How can you take 2 from 5 and leave 4?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

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 calculate the probability of getting a sum of six when a dice is thrown twice?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

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

When did John make this statement?

Can you find a five letter word that is left with only two letters if one is removed?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

What does Alexander the Great and Winnie the Pooh have in common?