There is something which is always coming but never arrives?

Can you write down eight eights so that they add up to one thousand?

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

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Different lights make me strange by changing me into different sizes. What am I?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.