Math Puzzles and Games
6. Let's say some primitive organisms
divide themselves every minute in two equals which also divide
the next minute and so on. The saucer in which we started
observing this process was full at 12.00. When was it full to
7. One brick
is one kilogram and half a brick heavy. How heavy is one brick?
8. A military car carrying an important
letter must cross a desert. There is no petrol station on the
desert and the car has space only for petrol that lasts to the
middle of the desert. There are also other cars that can
transfer their petrol into one another. How can the letter be
9. Having 2 sand-glasses: one 7-minute and
the second one 4-minute. How can you time correctly 9 minutes.