How many times do a clock's hands overlap in a day ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Give it food and it will live; give it water and it will die.

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

What kind of tree can you carry in your hand?

How many triangles are there in the picture below?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Can you count the number of matches in the picture below ?

A blonde put eyeliner on her head. Why?