I am a prime number.
The double of myself is equal to the square of me.

which number am I?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Find the value of "?" in the ball picture Riddle below:

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

Why Wine Glass Stem is so long?

I throw two dice simultaneously.

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

What has to be broken before you can use it?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

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