Spot what is wrong here in below Picture?

How can a man go eight days without sleep?

What can you see in the middle of March and April that you can never see in any other month?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

How is the moon similar to a dollar?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Can you find out the number of the parking space in which the car is parked?

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)