When the net shown is folded to form a cube, which is the only one of the options that can be produced? Choose from the options labelled in the figure.
The combined age of Alan and Bill is 86. The combined age of Bill and Claude is 73. The combined age of Alan and Claude is 15. How old is Bill? Answer with a natural number.
Find the weight to balance the scales. From the pivot, the 10 kg weight is 5 units to the left, the 6 kg weight is 1 unit to the left, the 20 kg weight is 2 units to the right and the unknown weight is 4 units to the right. Answer with a natural number.
What letter should replace the question mark? The two rows of letters are: top row C C R I N T I S N; bottom row S H I E S T I A ?. Work from column to column, choosing a letter from the top or bottom row each time, to spell two words. Answer with a single capital letter (English alphabet A-Z).
A manufacturer wishes to offer his customer a discount of 25 per cent and make a 12.5 per cent profit over and above his cost price. If his cost price is 32 pounds, what should be his gross selling price (before discount) in order to achieve the required profit margin? Answer with a natural number.
How many revolutions must the largest cog make in order to bring the cogs back to their original positions? The cogs have 15, 8, 7 and 4 teeth. Answer with a natural number.
The tiles are A (1 point), C (3), C (3), H (4), I (1), K (5) and L (1). What is the score of the highest scoring Scrabble word that can be made from these tiles? Answer with a natural number.
Mary has a third as many again as Mike, who has a third again as many as Molly. In total they have 148. How many does Mary have? Answer with a natural number.
How many minutes is it before 12 noon, if 90 minutes ago it was four times as many minutes past 9 am (as the number of minutes now remaining before noon)? Answer with a natural number.