Forget your age, your disposition and even your mom/wife/gf! Unleash the beast inside you... challenge your reflexes, meliorate your strategies... Win! Win! Win!
Can you find something which has keys that open no locks, with space but no room, and allows you to enter but not to go in?
Great Mr Anonymous.. so what is the answer for the first post in comments ;)
The letter "E"A Keyboard.