There is something which is always coming but never arrives?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What do you answer even though it never asks you questions?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

It is always ahead of me yet I can never see it. What is it?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?