If six children and two dogs were under an umbrella, how come none of them got wet?

My location can be determined by the below rebus.
So where am i ?

Name a key which is hardest to turn.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

81 x 9 = 801. What must you do to make the this equation true?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

There is a place where if I stand up straight, I will still be considered sideways.

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

What does this rebus mean?

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TIME

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?