How can one talk without saying a single word?

What number when divided in half becomes zero?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

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?

Buy me, smell me or deliver me, I do not change.

Who am I?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Can you write down eight eights so that they add up to one thousand?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

What has 13 hearts but no other organs?

What number comes next in this sequence:
7 8 5 5 3 4 4 _