Random Puzzles - BrainBashers

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Puzzle 1

Find two words, which are anagrams of each other, which complete this sentence:

Due to a recent outbreak of a ? infection in the zebra house, the local animal sanctuary had to ? their electron microscope correctly, to ensure rapid detection.

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www.brainbashers.com /puzzle/zbzt share

Puzzle 2

I was quite bored yesterday, so I visited my local animal sanctuary.

To pass the time, I counted 612 legs.

This came from an equal number of beetles, spiders, and mice.

Can you work out the total number of animals I counted?

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www.brainbashers.com /puzzle/zpeq share

Puzzle 3

Which of the shapes are identical to the first one?

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www.brainbashers.com /puzzle/znmv share

Puzzle 4

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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