Table: tunnels_brp
Columns: milepost
name_of_the_tunnel
length
maximum_height
minimum_height

Question: What is the minimum Height of the Little Switzerland Tunnel?
SQL: SELECT "minimum_height" FROM tunnels_brp WHERE "name_of_the_tunnel" = 'little switzerland tunnel'

Question: What is the Milepost of the Twin Tunnel #1 North?
SQL: SELECT COUNT("milepost") FROM tunnels_brp WHERE "name_of_the_tunnel" = 'twin tunnel #1 north'