**Puzzle 36**

John and Mary are both more than 10 and less than 100 years old. Mary’s age is 1 less than twice John’s age. Each age is the same as the other with the order of the digits reversed. How old are John and Mary?

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**Puzzle 37**

If there are 50 balls numbered 1 to 50 in a container from which the six winning lottery numbers will be randomly drawn, what is the probability that the winning numbers will be drawn in numerical order?

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**Puzzle 38**

A 1000-piece jigsaw puzzle is assembled by making a series of connections of two pieces, two sections of connected pieces, or an individual piece and a section. What is the least number of connections that can be made to assemble the entire puzzle?

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**Puzzle 39**

Two camels are standing in the desert facing in opposite directions. One of them says to the other, “Why are you smiling?” How did he know the other camel was smiling? As usual in this kind of puzzle, do not add any information that cannot be inferred from what is given.

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**P****uzzle 40**

. C

The diagram represents a maze in which each segment between intersections represents a tunnel. A mouse enters the maze in the lower left corner and makes his way to the cheese in the upper right corner. The mouse can move only upward or to the right, never downward or to the left. (He signed a contract and, anyway, that’s the shortest way to go.) If “path” designates any complete set of tunnels in the mouse’s repertoire going from the lower left corner to the upper right corner and two paths are “different” if they don’t consist of exactly the same tunnels, how many different paths can the mouse take?

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