Pictures:

What is black when clean, and white when dirty?

A black board.

2032

What has one eye, no mouth, and everyone agrees that it always makes a good point.

A needle.

1591

What kind of dog does this represent?

A pit bull.

2700

What school teaches about tea?

Universi-Tea.

681

What do you call an airline founded by a group of inheritors?

United Heirlines

1459

What is a pile of cats called?

A meow-ntain

1167

Why do violinists put rosin on their violin bows?

It makes the violins rosin-ate.

760

How did the geometry teacher feel when she saw her children teaching geometry to her grandchildren?

She felt that life had come full circle.

1120

Why did Lisa buy things with pennies?

When she bought things, she wanted to use common cents.

2587

What room grows on a dead tree?

A mushroom.

2556

How do we know that the ancient Egyptians were not honest?

They were into pyramid schemes.

3139

How is time like an insect?

It tends to creep up on you.

1951