Q: A tree doubled in height each year until it reached its maximum height in 20 years. How many years did it take this tree to reach half its maximum height?
A: answer below.
Costume Party
This guy goes to a costume party with a girl on his back. "What the heck are you?" asks the host. "I'm a snail," says the guy. "But... you have a girl on your back" replies the host. "Yeah," he says, "that's Michelle."
Answer to the riddle: 19 years. (i got this wrong at first)