When it's bad luck to meet a black cat?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

The more it dries, the wetter it becomes. Can you tell what it is?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

How could a baby fall out of a twenty-story building onto the ground and live?

How can you leave a room with two legs and return with six legs?

why number 8549176320 is one of a kind?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?