How can one talk without saying a single word?

What has to be broken before you can use it?

What two things can you never eat for breakfast?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

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

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

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

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Which number should replace the question mark?