10ticks Friday Puzzle
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!
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This week's Friday Puzzle
In the World Cup, a cricketer’s average after the first 5 innings was 23.2 runs.
After a further 4 innings his average increased to 42 runs.
What was his average for the last 4 innings?
Friday Puzzle (05/07/2019)
Farmer Paul has a grassy field. It can feed one cow for 5 days or one goat for 20 days.
If Farmer Paul puts one cow and one goat in the field, how long would the grass last?
(The grass won’t grow back!)
Friday Puzzle (21/06/2019)
At the start of a test I saw that the length of the test in minutes was 5 times the number of questions on the test.
45 minutes later I had answered 11 questions, and saw that the number of minutes remaining was now 6 times the number of questions remaining.
How long was the test?
Friday Puzzle (14/06/2019)
135 = 11 + 32 + 53
135 has the special property that it is equal to the sum of the first digit to the power 1, the second digit to the power 2 and the third digit to the power 3.
There are another three 3-digit numbers that have this property. Find one of them.
Friday Puzzle (07/06/2019)
A gardener makes a fish pond which has 12 equal sides and all the sides are at right angles to each other.
The perimeter of the pond (in m) is equal to the area of the pond.
What is the area of the pond?
Friday Puzzle (31/05/2019)
A newspaper is made of 8 large sheets of paper folded in half.
The newspaper has 32 pages altogether.
The first sheet contains pages 1, 2, 31 and 32.
I pick up a sheet containing page 25.
What is the total of the page numbers on this sheet?
Friday Puzzle (24/05/2019)
Squares with side lengths 3 cm and 2 cm overlap as shown.
What is the difference between the areas of the two yellow shaded parts of each square?
Friday Puzzle (17/05/2019)
A farmer has 41 sheep.
His farm is surrounded by 8 fields.
There is a window in each side of the house from which he can see 3 fields.
How should the sheep be put in the fields so he can see exactly 15 sheep from each window?
Friday Puzzle (10/05/2019)
Chris and Danny start at the same point.
They walk in opposite directions to each other for 3 metres,
then turn right and walk another 4 m.
How far apart are they now?