Puzzle 541
Can you find the country hidden in the following paragraph:
The local habitat around a railway track can be very interesting. For example, supporting the track is a sleeper, under which you can find the lesser-spotted great weevil.
Puzzle 542
What are the next two numbers in this sequence:
202 · 122 · 232 · 425 · 262 · 728 · ? · ?
Puzzle 543
Can you make this equation correct by moving exactly one matchstick?

Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are:
Puzzle 544
The BrainBashers golf world tour is well underway and Fred is planning the journey to each location.
Unfortunately, the BrainBashers atlas is playing up again and has worked out the mileage incorrectly, as shown below.
Birmingham 47,000
Oslo 18,000
Chicago 32,000
Manhattan 42,000
According to the system, how many miles is it to Sydney?