What's the next in the series?

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

Can you find out who is the kidnapper in below Picture and why, Explain ?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Kohli and Dhoni decided to have a paintball match.
Kohli told Dhoni, "Sir it is not right as you got thrice the paintballs I have".

Dhoni instantly gives Kohli 10 hit paintballs.
Kohli replied, "Sir, I believe you still have twice the paintballs than I have".

Dhoni gives "?" more paintballs to Kohli.
Kohli replied, "Sir it is even now, Let us have a match".

What is "?".

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

What work can one never finish?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

There are forty elephants and they have forty-fore heads. How can this be possible?