BrainBashers - Random Puzzles

Puzzle 1

At my local farmer's merchant, you can buy chicken feed for 15c per tonne, pig feed for $1.25 per tonne, and cattle feed for 40c per tonne. The feed can only be purchased by the tonne, and part tonnes aren't sold.

Last week I bought some animal feed, and luckily I managed to buy exactly 100 tonnes for exactly $100. How much of each feed did I buy?

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www.brainbashers.com /puzzle/zbtp share

Puzzle 2

Would you believe that this amazing sentence contains ninety two letters, one comma and a single question mark?

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www.brainbashers.com /puzzle/zqml share

Puzzle 3

This BrainBashers safe has a rather unusual control panel.

In order to open the safe, you have to press every single square once only, in the correct sequence, ending on the square marked E.

Each square indicates which square to press next, for example, 2U means move up 2 squares and 3R means move right 3 squares.

Can you determine which square you must start with?

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

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www.brainbashers.com /puzzle/zsxc share

Puzzle 4

Starting with COLD, change one letter at a time until you have the word WARM.

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

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

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