If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

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

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

You see me once in June, twice in November, and not at all in May. What am I?

What does this rebus puzzle means ?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Which point will the car reach to go out?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"