1, table problem: a square table, cut off one corner, how many corners are left;

2, the problem of cutting tofu: a piece of tofu is cut into three knives, and can be cut into a few pieces at most;

3, the problem of cutting watermelon: a watermelon is cut into seven parts with three knives, and the remaining eight skins are eaten. What should I do?

4. Bamboo pole problem: Can a 5-meter-long bamboo pole pass through the door of 1 meter?

5. Carton Question: Can a one-meter-long square box hold a one-meter-long wooden stick?

6. Clock problem: 12 hours later, how many times did the clock and minute hand repeat?

7. origami problem: how high is it to fold a piece of paper with a thickness of 1 mm 1000 times?

8. Pancake problem: It takes two minutes to bake a cake, one minute to bake the front and back, and at most two cakes are put in the pot at the same time, so it takes at least a few minutes to bake three cakes.