John was piloting a plane behind a car but was never able to overtake it. Why?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

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

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

What is black when you buy it, red when you use it, and gray when you throw it away?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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