Can you make a six-letter word using the letters N, A and B ?

Can you solve below mathematical equation?

2^1234 - 2^1233

There are forty elephants and they have forty-fore heads. How can this be possible?

What is wrong in the below Picture?

Can you find the 09 errors in the picture below?

Which number should replace the question mark?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

What is the next number in this series?

4,12,84,3612....

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)

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?