IMPRESSIVE THINGS TO KNOW

1. Rubbing orange peels on your skin repels mosquitoes.

2. Crickets can help you tell the temperature. Count the number of cricket chirps in 25 seconds, divide by three, then add four to get the temp in degrees Celsius.

3. The universal number for signalling distress is three, so whistle three times if you need help, wait, then repeat until you get a response.

4. Doritos can be used as fire kindling.