What's the next in the series?

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

With the help clues provided in the image, can you find the 5 digit key?

Keyboard words are not in alphabetical order, Why?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

My location can be determined by the below rebus.
So where am i ?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

What goes up but never comes down?

What has 13 hearts but no other organs?