What cakes can't be eaten? (brain teaser)

Description: Because discus is made of iron, you can't eat it.

The throwing area of discus competition is a circular area with a diameter of 2.50 meters, surrounded by a U-shaped protective cage. Discus is disc-shaped, thick in the middle and thin around, mostly made of metal and wood; Men's discus weighs about 2.005 ~ 2.025 kg and has a diameter of 2 1.8 ~ 22. 1 cm. The weight of women's discus is about 1.005 ~ 1.025 kg, and the diameter is 18 ~ 18.2 cm.

In discus competition, athletes should throw with one hand; After entering the throwing area and starting throwing, no part of the player's body may touch the ground, protective cage and toe board outside the area; After the throwing action is completed, you must walk out from the semi-circular extension line of the throwing area; The time limit for each trial run is 1 min; The discus throw must fall within the 34.92-degree fan-shaped throwing area to be effective.

Extended data

Classic example:

1. Can you turn ice into water as quickly as possible? Answer: the word "ice" becomes "water" if two points are removed.

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There is a word that everyone will mispronounce when they see it. What's this word? -Answer: This is the word "wrong".

5. Xiaohua is at home, who is the most like him? -answer: yourself.

6. What's the use of egg shells? Answer: It is used to wrap egg whites and egg yolks.

7. What is something that needs no effort? -Answer: Yawn.

8. You can do it, I can do it, and everyone can do it; One person can do it, but two people can't. What is this for? -answer: dreaming.

9. What must everyone do seriously every day? -answer: sleep.

10. Who is always afraid of taking a bath? -answer: clay figurine.

1 1. Xiaoming never studied, but he got a model student. Why? Answer: Xiaoming is a deaf-mute student.

Baidu encyclopedia-discus