why number 8549176320 is one of a kind?

What goes up but never comes down?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

What breaks yet never falls, and what falls yet never breaks?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Solve the rebus riddle in the picture below.

Which word does the below Plexor means ?