Decode below rebus
D
N
A
T
S , D

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 ?

A man was convicted of a minor offence in Akbar court. Akbar decided to give him a chance. He asked him to give a statement. If the statement is true, he will be killed by lions and if it is false, he will be killed by trampling of wild elephants.

The convicted person requested help from Birbal and since the crime was not a big one, Birbal decided to help him. Whatever Birbal suggested impressed Kabir and he let the convicted person go.

What did Birbal suggest to the person?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you count the number of quadrilaterals in the picture below?

What seven-letter word has hundreds of letters in it?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?