What are some unsolved mysteries?

Answer:
Well for one Aliens, then Nessie (loch-nest monster) and Bigfoot.
There's many more like Mermaids and fairyland but we all know that fairyland is a bit wacko.
Hope I helped but as I said there's millions more.
First answer by Chillichip. Last edit by Chillichip. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 1 [recommend question].