How do you go from 98 to 720 using just one letter?

What's the next in the series?

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

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

What does this say?

XLR8

What's the only room from which no one can enter or leave

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

I am an odd number. Take away a letter and I become even. What number am I?

John Went to the nearby store in a Mall to buy something for her home. Below is the conversation between the two:

John: How much for the one?
Shopkeeper: It is $2
John: How much for the Eleven?
Shopkeeper: It is $4
John: How much for the Hundred?
Shopkeeper: It is $6.

What is John buying?