What are some cool brain teasers?


Quick Answer

One cool brain teaser is the following: Johnny’s mother had three children; the first child was named April, the second child was named May, but what was the third child’s name? Others include "Brothers and sisters, I have none but this man's father is my father's son. Who am I looking at?"

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Brain teasers are puzzles, often logic problems, that require unconventional or lateral thinking to solve. Many brain teasers rely on the fallibility of human intuition, especially when dealing with conditional probability. Other brain teasers include:

Which is correct to say, "The yolk of the egg is white" or "the yolk of the egg are white"?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

What word in the English language is always spelled incorrectly?

One of the most famous brain teasers involving conditional probability is the so-called Monty Hall problem, which gives a contestant on a game show a choice of three doors. After the contestant picks a door, a different door is opened to reveal a goat. The contestant is then asked whether he wants to switch doors. What should he do?

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