If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?
Imagine different shaped vessels being filled. Can you work out what the graphs of the water level should look like?
Water freezes at 0°Celsius (32°Fahrenheit) and boils at 100°C (212°Fahrenheit). Is there a temperature at which Celsius and Fahrenheit readings are the same?
Whenever a monkey has peaches, he always keeps a fraction of them each day, gives the rest away, and then eats one. How long could he make his peaches last for?