Which is the correct shadow of the bird?

The dirtier I get, the whiter I look. Who am I?

What brings you down but never up?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

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

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

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

What word is pronounced the same if you take away four of its five letters?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

What is the coolest letter in the alphabet?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?