Why can't we tickle ourselves?
A bowling alley is 40 feet long (from the foul line to the head pin). A bowling ball travels at a rate of speed whereby it covers half of the remaining distance in 1 second (1 second to go the first 20', 1 second to go the next 10', etc.). How long will it take for it to hit the head pin?
How many planets do we have in our solar system.
If someone asked you to give them a random piece of advice, what would you say?