I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

The Little ant seems to be always confused. Do you know why?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

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

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

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?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?