If you were at an Apple store, would most of the computers be running Ubuntu?
Apple stores stock only Mac brand computers. Mac computers come preinstalled with the latest iOS.
The answer is no.

Did producer of Easy Rider ever star in a movie with Dean Cain's Princeton girlfriend?
Easy Rider was produced by Peter Fonda. Dean Cain dated Brooke Shields while at Princeton. Brooke Shields and Peter Fonda star in the movie Wanda Nevada.
The answer is yes.

Can I build a house on an asteroid?
Building a house requires gravity to hold the house to the surface. The largest asteroid in our Solar System is Ceres, 583 miles across. Asteroids are not large enough to create noticeable gravity.
The answer is no.

Could Goofy have counted nine planets in his first year?
Goofy was created in 1932. Pluto (the celestial object) was discovered in 1930 and labeled a planet.
The answer is yes.