How can you drop a raw egg from a height onto a concrete floor without cracking it?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

Why is a river so rich ?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Buy me, smell me or deliver me, I do not change.

Who am I?

What jumps when it walks and sits when it stands?

Who is that with a neck and no head, two arms and no hands? What is it?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?