Seven candles, five out, 10 left?

The topic is incomplete. This is a brain teaser. A * * has 12 candles, lit 7 candles, and then blew out 5 candles. Then two candles are still burning to the end, and only two candles are burned out, so there are 10 candles left.

Brainstorming originated in ancient India. It means that when thinking encounters special obstacles, you should quickly leave the habit of thinking and think about the problem from other aspects.

Extended data:

Classic brain teaser:

1, melons, cucumbers, watermelons and pumpkins can all be eaten, but what melons can't be eaten?

Answer: fool

2. There are six steamed buns in the basin, each for six children 1, and there is 1 in the basin. Why?

Answer: The last child brought a basin.

Can you turn ice into water as soon as possible?

Answer: the word "ice" becomes "water" if two points are removed.

In winter, the baby is afraid of the cold and refuses to take off his hat when he enters the house. But he saw a man take off his hat obediently. Who is that man?

Answer: barber

Pharaoh has to shave forty or fifty times a day and still has a beard on his face. What is the reason?

Answer: Lao Wang is a barber.

6. There is a word that everyone will pronounce wrong when they see it. What's this word?

A: This is the word "wrong"

7. Xiaohua is at home. Who looks like him the most?

Answer: myself.

8. What's the use of egg shells?

Answer: It is used to wrap egg whites and egg yolks.

9. What is no hard work?

Answer: yawn

10, you can do it, I can do it, everyone can do it; One person can do it, but two people can't. What is this for?

Answer: dreaming