If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

I have an eye but still cannot see.

Who am I?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What is the Surname of Barbie Doll?

They are three errirs in this question. Can you find them?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

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?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?