1. A frog at the bottom of the well ten metres deep begins to climb out. He climbs up three metres every day but slips back two metres each night.
After how many days will he be free?
2. A bucket and spade cost thirty pence together.
If the bucket cost ten pence more than the spade, how much did the spade cost?
a spade - лопата
to cost - стоить
3. Professor Brainwave was asked how old his young children were. “I cannot remember. Except – wait a bit… If you take one age from the other, you get TWO. And when you multiply their ages, the answer is NINETY-NINE. I should be able to work it out from that.”
Can you work it out before the Professor does?
St. Ives – название города
a wife (wives) – жена (жёны)
a kit = a kitten
One day Mr. Barmy went to the shop and bought a cat, a mouse and a large piece of cheese at a time. Then he had to cross the road to get his car. He could only carry one of the things. He couldn’t leave the cat alone with the mouse, because the cat would eat the mouse. And he couldn’t leave the mouse alone with the cheese because the mouse would eat the cheese.
If you put these seven sentences in the right order, you will see what Mr. Barmy did:
Tom, Dick, Bill and Jack wore shirts and trousers. Their shirts were red or blue. There trousers were green or blue.
Two boys wore blue shirts.
Two boys wore green trousers.
One boy wore a red shirt and green trousers.
One boy wore a blue shirt and blue trousers.
One boy wore a red shirt and blue trousers.
Jack and Tom wore red shirts.
Dick wore green trousers.
What colour shirt and trousers did Bill wore?
7. Sally turns once every half an hour. She goes to bed at nine in the evening and wakes at seven the next morning.
How many times does she turn in the night?
|Keys to the puzzles|