Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

If eleven plus two equals one, what does nine plus five equal?

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

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

I always drive my customer away.

Who am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.