*Numbers: 1-Pi (3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899...) 2-e (2.71828 18284 59045...) 3-i ( sqr(-1) ) [e^(i*pi)= -1]
*Classical Pieces: 1-Toccata and Fugue (J.S.Bach) 2-Bolero (Ravel) 3-Turkish March (Mozart)
*Games: 1-RPGs 2-Computer Games 3-Chess
*Sciences: 1-Physics 2-Mathematics 3-Chemistry
*Sci-Fi Series: 1-Star Trek 2-Star Wars 3-Quantum Leap
*Elements: 1-Helium 2-Galium 3-Hydrogen