BrainBashers - Random Puzzles

Puzzle 5

What comes next in this sequence:

dog goat tarantula aardvark koala ?
Choose from:

cat, mouse, antelope, elephant, frog

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Puzzle 6

Starting with BALL, change one letter at a time until you have the word HEAD.

Each change leaves the other letters in their original places and must result in a proper word.

What is the minimum number of steps required to achieve this change?

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Puzzle 7

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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Puzzle 8

What letter comes next in this sequence:

B r a i n B ?

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