Learn your times tables. :)
65 feet per second is equal to 42.34 mph (71.32 kph).
pick out unusual stuff about them.
Association
All you need to do is memorize the songs and then start practicing it and soon enough you can rap it fast!
Jose Reyes can run 6.2 seconds in the sixty yard
4.1 
Break the song down into small sections and focus on one section at a time. Use repetition and practice slowly at first, gradually increasing the speed as you become more comfortable with each section. Utilize mnemonic devices or visualization techniques to help remember the structure and melody of the song.
7.9 seconds
About sixty with the regular size tires.
Fast Second was created in 2005.
Just read the names and symbols 3 times a day for at least 3 days.
sixty miles per hour.