Puzzle

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Trefoil Puzzle #147

Jill and Klara took turns driving on a round trip using the same route both ways. Ari drove the first 40 kilometers and then Charles drove the rest of the way. Ari started to drive on the return trip and the Charles drove the last 50 kilometers. Which of the two drove more kilometers and how many more did he drive?

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Trefoil Puzzle #146

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

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Trefoil Puzzle #145

There is a cage at the zoo that holds a variety of jungle animals and creatures. In this cage, there are 11 heads and 20 feet. There are twice as many jungle creatures with four feet as there are jungle creatures with two feet. How many creatures of each kind are in the cage?

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Trefoil Puzzle #144

It takes Sandy three hours to paint a fence, and it takes Claude six hours to complete the same job. How long would it take both of them working together at their normal paces to complete the same job?

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Trefoil Puzzle #143

There are two books standing side by side on a shelf, each consisting of exactly 100 pages. The book on the left is upside-down. If you add the page number at the extreme left-hand side of the left-hand book to the page number at the extreme right-hand side of the right-hand book, what is the total?

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Trefoil Puzzle #141

Using one set of letters in the same order, can you fill in the blanks and make a normal sentence?
A _o_a_l_ doctor had _o _a_l_ and therefore, was _o_ a_l_ to operate.

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Trefoil Puzzle #138

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary you’d think nothing was wrong with it and in fact, nothing is wrong with it. It is unusual though. Why? Study it, think about it, and you may find out. If you work at it for a bit it will dawn on you. So jump to it and try your skill at figuring it out. Good luck!