List of mysterious facts

Answer 1

There is a link to the listverse site for top ten mysteries below; a few of these aren't actually that mysterious - the Bermuda triangle and Mary Celeste have largely been explained, but there are a few such lists in listverse so plenty to chose from.

Answer 2

1. The Bermuda Triangle is a region in the western part of the North Atlantic Ocean where numerous ships and aircraft have mysteriously disappeared.
2. The Voynich Manuscript is an ancient, undecipherable text filled with bizarre illustrations that has baffled scholars and researchers for centuries.
3. The Easter Island statues, known as Moai, are a set of massive stone sculptures believed to have been constructed by the Polynesian people on the remote Easter Island, but the method of their transportation and purpose remain a mystery.
4. The Dyatlov Pass incident involved the unexplained deaths of nine Russian hikers in the Ural Mountains in 1959, with theories ranging from avalanche to alien abduction.