Rearrange the letters in "new door" to make one word.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What is the next number in the series?

15 29 56 108 208 ?

Which is the rope you never skip with?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

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?

Find the number of squares in the below picture

They are three errirs in this question. Can you find them?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _