Prove that the below maths equation is true.

8 + 8 = 91

During which month do people sleep the least?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

How many times can you subtract the number two from the number fifty?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

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)