What's the next in the series?

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

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

Can you find the 09 errors in the picture below?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

what does this picture(rebus) riddle means ?

The Little ant seems to be always confused. Do you know why?

O_er_t_o_

Complete the missing letters of the given word.