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Which times on a digital clock have a line of symmetry? Which look the same upside-down? You might like to try this investigation and find out!

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Clock Hands

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

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Ten Green Bottles

Do you know the rhyme about ten green bottles hanging on a wall? If the first bottle fell at ten past five and the others fell down at 5 minute intervals, what time would the last bottle fall down?

Minutes Inbetween

Stage: 2 and 3 Short Challenge Level: Challenge Level:1

Two complete hours takes you to $13:41$. Then, another $19$ minutes takes you to $14:00$, and another $2$ minutes to $14:02$.

As there are $60$ minutes in an hour, the two hours is the same as $2 \times 60 = 120$ minutes, so the total time is $120 + 19 + 2 = 141$ minutes.

This problem is taken from the UKMT Mathematical Challenges.
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