This is a lake (by normal geographic definition, so some things with "Sea" in their title are actually lakes (e.g., The Sea of Gallilee) that are shared by more than one country. Also we are going by standard UN recognized borders.
1. What lake is shared by the most countries (5)?
2. There are two lakes shared by 4 countries, what are they? Note - one of them would only qualify when full which is rather rare these days.
3. Aside from that I can find 4 other lakes shared by 3 countries. One of these is pretty obscure (I did not know this until I looked into it). What are they? (hint - you need not look in the western hemisphere)
4. I can find 3 lakes split between two countries on an island. How many can you name? (there may be more than I found....)
