Tricky riddles

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

Hockey Stick and ball cost $50. If the Stick cost $49 more than the ball. What is the cost of each ?

There is bomb on top of a computer; around the computer are a hairbrush, keys, phone and a cup. When the explosion comes, what item destroyed first?

Take 9 from 6, 10 from 9, 50 from 40 and leave 6. How is it possible?

A lawyer, a plumber and a hat maker were walking down the street. Who had the biggest hat?

What kind of dog has a bark but no bite?

John Heysham Gibbon was most renowned surgeon of 1940-1970. More than 90% of his surgeries he performed are highly successful and still almost all of his patients die.

A bus driver was heading down a street in Colorado. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

A hungry donkey was tied to a rope eight feet long. About thirty feet away there was a basket of fresh carrots. The donkey wanted to eat those carrots. How did he reach them?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?