1.Some Lili pads float in a lake, and their number doubles every day. It takes 48 days for the Lily pads to cover the entire lake. How long would it take for them to cover just half of it?
Answer: 47
2. In a race, what is your position if you overtake the person in second position?
Answer: 2nd.
3. If 3 cats can kill 3 rats in 3 minutes, how long will it take for 100 cats to kill 100 rats?
Answer: 3 minutes. It takes 3 minutes for 1 cat to kill 1 rat.