1) The national animal of Canada is the beaver.

2) The highest-grossing film of all time is "Avengers: Endgame," which has earned over $2.79 billion at the global box office.

3) The speed of a sneeze can reach up to 100 miles per hour (160 kilometers per hour).

4) Orchids are one of the largest families of flowering plants, with over 25,000 species.