What has no start, end, or centre?

What's the next in the series?

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

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

When is the top of a mountain similar to a savings account?

What does the rebus below mean?

TEN BADTION

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Complete the table series riddle by finding the number that can replace "??".

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

I am quite hot but become too cold if you remove the first two letters. What am I?