You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

When we see 2 but call 10?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

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.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

The answer I give is yes, but what I mean is no. What was the question?

I can write cow in 13 letters.

Can You?

Can you name an animal whose killing cannot be performed without spilling your own blood?