The flag is given a half turn anticlockwise about the point O and is then reflected in the dotted line. What is the final position of the flag?
When I looked at the greengrocer's window I saw a sign. When I went in and looked from the other side, what did I see?
I am standing behind five pupils who are signalling a five-digit number to someone on the opposite side of the playground. What number is actually being signalled?
Beatrix has a 24-hour digital clock on a glass table. How many times in a 24-hour period will the display and its reflection give the same time?
Can you remove the least number of points from this diagram, so no three of the remaining points are in a straight line?
Can you find the time between 3 o'clock and 10 o'clock when my digital clock looks the same from both the front and back?
What is the smallest number of additional lines that must be shaded so that this figure has at least one line of symmetry and rotational symmetry of order 2?