Why are all black people so quick ?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Which flower has two lips?

Why do Chinese men eat more rice than Japanese men do ?

Decode the movie name from the below picture?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

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?

Find the last number in the series below:

voN luJ yaM raM ---