Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you start the fire using two pieces of wood?

What is next number in the pattern below:

131 517 192 123 ?

What is the centre of gravity?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?