Name the most popular trees used in US street names (min. 100 total streets). Total number shown. Must be actual trees, not plants/shrubs generally.

Name the most common words found as suffixes in US street names. I did not include directional suffixes such as 'North' or 'Southwest.' You must type in the full suffix, not an abbreviation for it - I tried to consolidate abbreviated suffixes with their full names. Total number of roads/streets/etc with that suffix shown.

Name the 50 busiest train stations in Germany based on total passengers.