Logic Riddles

Question: What is the difference between a locomotive engineer and a teacher?

Question: 1 is 3, 3 is 5, 5 is 4, 4 is perfect. Why?

Question: A wooden block is floated on water. What can be placed on it to reduce its weight?

Question: There are two cars. The suburban is going 50 mph, and the mini van is going 30 mph. Although, the minivan passes the suburban and both cars are still going the same speed that they started at. How?

Question: 3 rich guys walk into the bar one man walks out rich how is this possible