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Random Puzzles 


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Puzzle 197 


Can you fill the thermometers with mercury, such that the numbers outside the grid indicate how many cells in each row and column contain mercury?

Mercury always starts filling from the bottom of a thermometer and not every thermometer has to contain mercury.

Puzzle Copyright © Johan de Ruiter

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Puzzle 198 


What number comes next in this sequence:

1 · 2 · 2 · 4 · 8 · 11 · 33 · 37 · 148 · ?

Puzzle Copyright © Kevin Stone

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Puzzle 199 


A kind old person decided to give 12 sweets to each of the adults in the town, and 8 sweets to each of the children.

Of the 612 people in the town, exactly half of the adults, and exactly three quarters of the children took the sweets.

How many sweets did the kind old person have to buy?

Puzzle Copyright © Kevin Stone

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Puzzle 200 


I started out on the journey from the forest with a full tank of fuel, 12 gallons exactly.

However, the moment I started out, the fuel tank sprung a leak. I travelled at 50 mph until I ran out of fuel exactly 4 hours later.

I know that the car does 25 miles for each gallon.

How much fuel had I lost through the hole?

Puzzle Copyright © Kevin Stone

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