Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Which is the rope you never skip with?

who is silent in the parliament?

Before Mount Everest was discovered, what was the highest mountain in the world?

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

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

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 dies of old age on his 25 birthday. How is this possible?