why number 8549176320 is one of a kind?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

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?

How many words can a pen with half refill write?

I am the fastest animal but cannot climb the tree. What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What is the end of everything?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?