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Random Puzzles 


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Puzzle 1 


What comes next in this sequence:

iron · bromine · uranium · argon · ?

Puzzle Copyright © Kevin Stone

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Puzzle 2 


Downhill Mountain Bike Raceall logic puzzles

At the recent BrainBashers downhill mountain bike race, four entrants entered the challenging slalom event.

Alex finished in first position.
The entrant wearing number #2 wore red, but Drew didn't wear yellow.
The person in last place wore blue, and Stevie wore number #1.
Glen beat Stevie, and the person who finished in second wore number #3.
The entrant in yellow beat the entrant in green.
Only one of the entrants wore the same number as their final position.
Can you determine who finished where, the number, and colour they each wore?

Puzzle Copyright © Kevin Stone

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Puzzle 3 


Place letters into the grid such that every row, column, and 2 x 2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.

Letters allowed: S C H O O L

Note: this puzzle is not interactive, and the squares cannot be clicked.

Puzzle Copyright © Alan Stillson and Frank Longo

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Puzzle 4 


If cat and a half can catch a mouse and a half in a day and a half how many mice can 3 cats catch in 3 days?

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