If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

what does the below math rebus puzzle mean?

Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket.

When his friend asked him for a change, he could not give change for a rupee and five paisa.

Can you tell which coins he has?

Be active and find the killer in the picture Riddle below.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?