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

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

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

Can you find the hidden animal in the picture below?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

In which direction should the missing arrow point?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?