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

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

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?

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

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

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?