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

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

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

Find the hidden tiger in the given optical illusion ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

What 5-letter word typed in all capital letters can be read the same upside down?

What is the difference between a jeweller and a jailer?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

What do you think with the below Picture ?