Why did the pioneers cross the country in covered wagons?
Because they didn't want to wait 40 years for a train!

Why did the teacher wear sunglasses?
Because his class was so bright!

1st Roman Soldier: What is the time?
2nd Roman Soldier: XX past VII!

Did you hear about the cross eyed teacher?
He couldn't control his pupils!

Teacher: What family does the octopus belong to?
Pupil: Nobody I know!