What's the next in the series?

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

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Can you count the number of triangles in the given figure?

I have no life, but I can die. What am I?

If eleven plus two equals one, what does nine plus five equal?

What four weights can be used to balance from 1 to 30 pounds?

When it is alive we sing, when it is dead we clap our hands. What is it?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

A blonde put eyeliner on her head. Why?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL