The Great Book of Riddles: 250 Magnificent Riddles, Puzzles and Brain Teasers (Elsinore Puzzles) by Peter Keyne & Rudolph Amsel

Author:Peter Keyne & Rudolph Amsel [Keyne, Peter]
Language: eng
Format: epub, mobi
Publisher: Elsinore Books
Published: 2014-08-23T21:00:00+00:00

4. Three and a Half Boys

A woman has seven children. Half of them are boys. How can this be possible?

5. A Seemingly Simple Sum

A teacher leans over one of her student’s desks and puts a big red cross beside one of his sums. The student protests that the sum is correct, and is able to prove it to his teacher very simply. What did he do?

6. Goats and Chickens

A farmer is happy to let his chickens and goats wander in the same field. More out of courtesy than interest, you ask him how many animals there are in the field in total. It pleases him to reply cryptically, and he tells you that there are 30 heads and 84 legs in the field.

Can you work out from this how many goats and how many chickens he has?

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