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

If a wheel has 54 spokes, how many spaces are there between the spokes?

Which letter of the alphabet has the most water?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Prove that twice of ten is the same as twice of eleven.

Where do you go to learn how to make ice cream?

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.

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

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?

What can you catch but never throw?