What goes up but never comes down?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Keyboard words are not in alphabetical order, Why?

I have teeth but i don't bite. Who Am I ?

What's a single-digit number with no value?

Take one out and scratch my head, I am now black but once was red. What am I?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Can you find a rabbit in the given picture?