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?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

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

Count the number of lines in the image below ?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

What is the next number in this matchsticks series riddle?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?