Can you find the odd number in the following?

2716, 4135, 5321 and 7145

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

John was piloting a plane behind a car but was never able to overtake it. Why?

Can you count the number of squares in the given picture?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Name a key which is hardest to turn.

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What is the word or phrase below?
R | E | A | D