1. It burns when Sally pees. She pees for 30 seconds, yelling "ouch" every three seconds while Johnny is in another room counting marbles. If Sally starts peeing at the same time Johnny starts counting marbles, and Johnny counts aloud every odd-numbered marble, how many times does Sally scream in pain while Johnny says nothing?
2. Mr. Walters plants 42 tulip bulbs in a five foot by 7 foot rectangular garden every spring. Every day after the first day of spring, his dog, Paco, immediately digs up 30% of the flower bed. How many bulbs does Mr. Walters have to replant before he looks up and realizes he's alone?
3. Carol and Pam have been living together for exactly five years. Why don't they love each other in equal amounts?