A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

What does this mean?

CCCCCCC

What is black when you buy it, red when you use it, and gray when you throw it away?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

What is the last thing you take off before bed?

What do you see in the image below

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

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.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Can you count the number of lines in the below picture?