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?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

What is full of holes but still holds water?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What does this Rebus Picture means ?

How many times can you subtract the number 5 from 25?

Which is heavier: a ton of bricks or a ton of feathers?

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?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?