CREATE TABLE "tunnels" (
  "milepost" real,
  "name_of_the_tunnel" text,
  "length" text,
  "maximum_height" text,
  "minimum_height" text
);

Question: What is the minimum Height of the Little Switzerland Tunnel?
SQL: SELECT "minimum_height" FROM "tunnels" 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" WHERE "name_of_the_tunnel"='twin tunnel #1 north';