BrainBashers - Random Puzzles

Puzzle 401

In Farmer Donald's hay loft there are a number of ants, mice and chickens.

There are ten times as many ants as there are mice, and there are four times as many mice as there are chickens.

Altogether there are 1,806 feet.

How many chickens are there?

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Puzzle 402

Using all of the letters A to Z, each once only, complete these common words. There are currently 5 different answers, can you find them all?
-e-el b-d s-i-l swa-- fo- -er-y a-ur- -u-dy -uo-e -e-a-e ed-- sc-r-y l-p --lls

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Puzzle 403

Complete this grid, using the letters AAADDEEEEKSSSS.

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

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Puzzle 404

A large freshwater reservoir has two types of drainage system. Small pipes and large pipes.

6 large pipes, on their own, can drain the reservoir in 12 hours.

6 small pipes, on their own, can drain the reservoir in 18 hours.

How long will 6 large pipes and 6 small pipes take to drain the reservoir?

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