BrainBashers - Random Puzzles

Puzzle 1

Last week my wife and I found ourselves stranded on an island, oops!

Unfortunately, we were also stranded with our two sons, with no clear means of rescue.

Luckily, I came across an old rickety boat which I knew could carry either one adult or two children.

How did I rescue my family?

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Puzzle 2

Can you find a five-digit number that has no zeros, and no repeated digits, where:

The first digit is a prime number.
The second digit is the fifth digit minus the first digit.
The third digit is twice the first digit.
The fourth digit is the third digit plus three.
The fifth digit is the difference between the first digit and the fourth digit.
Don't forget that 1 isn't prime, the prime numbers start with 2, 3, 5, …

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Puzzle 3

Which is the odd one out:
CAT DOG GOLDFISH HAMSTER COW

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Puzzle 4

Home Improvements – Logic Puzzles

After a recent spate of home improvements, four couples were having a dinner party to discuss the additions to their houses.

Alan had not recently had a new bathroom. Kara had not yet done her kitchen, but perhaps would update it next. Brian, who is married to Maud, had not had new windows. Laura delighted in showing photographs of her new conservatory. Neither Charles nor David had a new kitchen. Julie had not had new windows. Alan, who also had not had windows, is not married to Laura and Charles is not married to Kara.
Who is married to whom, and what work had they recently undertaken, assuming that each couple had one improvement and no two couples had the same improvement.

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