I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Take one out and scratch my head, I am now black but once was red. What am I?

Can you solve below mathematical equation?

2^1234 - 2^1233

With the help clues provided in the image, can you find the 5 digit key?