Solve below rebus puzzle?

What does this rebus mean?

O
N
C
E
TIME

What is the next shape from answers A, B, C, and D figure?

Who has married many women but was never married?

What goes through cities and fields, but never moves?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?