10ticks Friday Puzzle

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Welcome to Ian’s Friday Puzzle! Dust off those Friday cobwebs with a little manipulation of the old grey matter. Perplexing puzzles, logical, illogical, and sometimes just plain stupid. Be prepared to be bewildered, befuddled and bedazzled!

See the latest Friday Puzzle below and look at all the past puzzles. Get the Friday Puzzle straight to your phone, follow us on Twitter. The first 5 correct answers join our Hall of Fame!

This week's Friday Puzzle

Susie the consumer surveyor looks at the 99 houses in 10ticks Street. The houses are numbered 1- 99.

As only a sample is required, she misses out houses which have a number divisible by 2 or by 3.

How many houses does she survey in this street?

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Friday Puzzle (13/05/2022)

Jimmy the bookkeeper works for a gold merchant every day this week (7 days).

He will be paid one gold bar for his services, but insists he is paid at the end of every day with 1/7 th of the gold bar.

What are the fewest cuts (and where) to the gold bar that will allow the gold merchant to pay Jimmy his 1/7 th of a gold bar each day?

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Friday Puzzle (06/05/2022)

Arrange the numbers 1, 2, 3, 4, 5, 6, 7 and 8 in the grid, so that no two consecutive numbers are in boxes that touch along an edge OR a corner.

empty grid

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Friday Puzzle (29/04/2022)

Stella is out running. She is now two-fifths of the way through the last third of her run.

What fraction of the whole run has she completed?

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Friday Puzzle (22/04/2022)

Find the values of the whole numbers x and y in these simultaneous equations:

x + y = 8

1/x + 1/y = 2/3

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Friday Puzzle (08/04/2022)

A 3-digit number is made up entirely of odd numbers.

No matter what order the 3 odd numbers are placed in, the 3-digit number is neither prime nor divisible by 3.

Eg 155, which also makes 515 and 551, are all neither prime nor divisible by 3.

There are two other (sets of) numbers like this.

Find one of them.

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Friday Puzzle (01/04/2022)

I add five different integers in every possible pair combination to get

0, 1, 2, 4, 7, 8, 9, 10, 11 and 12.

What are the five original integers?

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Friday Puzzle (25/03/2022)

Find the value of each letter so the equation is correct.


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Friday Puzzle (18/03/2022)

What is the smallest prime number that will divide exactly into 3^333 + 5^555?

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Friday Puzzle (11/03/2022)

A cat and a rat weigh 6 kg.

A sheep and a rat weigh 20 kg.

A cat and a sheep weigh 25 kg.


How much do a cat, rat and sheep weigh altogether?

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