A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

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

which number am I?

Can you solve below mathematical equation?

2^1234 - 2^1233

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Solve the equation in the image by looking at the pattern closely.

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

I know a nine-letter word having only one vowel.
Do you ?

Why is 6 afraid of 7?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What does this rebus puzzle mean?