1. Ratio of an igloo’s circumference to its diameter = Eskimo Pi.
2. Time between slipping on a peel and smacking the pavement = 1 bananosecond.
3. Time it takes to sail 220 yards at 1 nautical mile per hour = Knotfurlong.
4. Half of a large intestine = 1 semicolon.
5. 1,000,000 aches = 1 megahurtz.
6. Basic unit of laryngitis = 1 hoarsepower.
7. 1 million microphones = 1 megaphone.
8. 2 million bicycles = 2 megacycles.
9. 365.25 days = 1 unicycle.
10. 2,000 mockingbirds = 2 kilomockingbird.
11. 52 cards = 1 decacards.
12. 1,000 millilitres of wet socks = 1 litrehosen.
13. 1 millionth of a fish = 1 microfiche.
14. 1 trillion pins = 1 terrapin.
15. 10 rations = 1 decoration.
16. 2 monograms = 1 diagram.
17. 4 nickels = 2 paradigms.
18. Shortest distance between two jokes = A straight line.