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

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

I make two people out of one. What am I?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What question can you never answer yes to?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

It belongs to you, but other people use it more than you do. What is 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 ?

What Time Should the last watch show in the below figure?