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

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is the largest number you can write with just 3 digits?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

How can you drop a raw egg from a height onto a concrete floor without cracking it?