Sabrina's Riddles

...well, she found them on the internet, but they're interesting! Have a go at solving them. Don't look up the answers (I will provide them in a week from now, here). Or you can suggest riddles of your own. Or discuss riddles. Or... whatever you want! (I think there are some repeats. Ignore them. This was difficult to upload and arrange!)

Lateral Thinking Puzzles - 1

HAPPY AND SAD

Three women stand together, each one wearing a swimsuit. Two of the women are sad and one is happy. Both the sad women are smiling, and the happy one is crying. Why?

THE BRICK

A man was found lying in the street by police. He was unconscious, with a brick beside him. Nobody had thrown the brick, nor had it dropped from above. In fact, the brick belonged to the man. What had happened?

THE PHONE RINGS

Eight men were sitting around a boardroom table. Another man with a gun was standing by the door. The atmosphere was silent and tense. Suddenly the phone rang. At that moment, one of the eight men ran to the window and jumped out head first. Can you explain?

These are half-inched from a book I've got.

The Nine Apples Puzzle

You have nine apples which all look identical.

One of them is slightly heavier than the rest.

You have a pair of weighing scales.

What is the LEAST number of times you would have to use the scales to guarantee that you will identify the heavier apple?

Answers and explanations in the COMMENTS below please.