Problem: What is the name of the race car driven by Speed Racer in the late 1960s series of the same name?
======
A: mach 5

Problem: Who directed and co-starred in the 1958 film 'Touch of Evil'?
======
A: orson welles

Problem: "Who was president of the Society for Constructive Birth Control and Racial Progress in England and the author of books on sexual hygiene published between 1918 and 1935 including ""Married Love"", ""Radiant Motherhood"" and ""Marriage in My Time""?"
======
A: marie stopes

Problem: Part of the boundary between which two US states runs down the middle of of the main street of the town of Texarkana?
======
A:
texas and arkansas