Whats green and looks like a lettuce? (A lettuce)
Whats green and looks like a salad but is not a lettuce? (A picture of a lettuce)
Whats green, looks like a salad but is not a salad and not a picture of a lettuce? (A picture of a picture of a lettuce)

Why did the naughty little boy attack the teacher? (Because that’s what naughty little boys do)

Why did the boy wash his hands? (Because they were dirty)
Why didn’t the boy wash his hands? (Because they were clean)
Why didn’t the naughty little boy wash his hands? (Because they were dirty and he wanted to give his sister rabies)

Why did the boy go to the doctors? (He was sick)
Why did the girl go to the doctors? (She thought the doctor was good looking)

Why did the boys swim across the pool? (To get to the other side)

Why did the boy look at the girl? (He thought she was pretty)
Why didn’t the boy look at the girl? (He thought she was ugly)
Why did the girl look at the boy? (Because he had taken her jumper)

Why did the bomb explode? (Because that’s what bombs do)