There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

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

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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.

Which part of London exists in France as well ?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

What makes this number unique: 8,549,176,320?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?