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

What has to be broken before you can use 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.

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

Which letter of the alphabet has the most water?

Which alphabet is a part of our body?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.