Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What is the word or phrase?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Which famous Hollywood movie name is hidden in the below rebus?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

What is the next number in this series?

4,12,84,3612....

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?