Can you replace the question mark with the correct number in the below table sequence?

What Time Should the last watch show in the below figure?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

You need to remove two matchsticks to make the below equation true. Can you do it ?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

What has to be broken before you can use it?