(1)You gain the ability to inflict the "Liar Liar" curse. Whoever you choose becomes completely honest and will sometimes even blurt out honest thoughts uncontrollably unbiden. This ability has unlimited range, and can even be cast on people you have only seen on TV. Only one person at a time can be so cursed, and the curse fades from one target the moment you cast it on a new target.

(2)You can decide to Benjamin Button yourself, aging in reverse. You can wait up to ten years before activating this ability, but once you do, there is no turning back, and you will eventually die once you fall below the age of viability. This reverse aging also gradually undoes any diseases that are even tangentially related to age, like most heart diseases. It doesn't affect diseases completely unrelated to age likes AIDS, however.

(3)You no longer need food, or to eliminate waste. Perfect nutrition simply appears in your bloodstream, and waste products simply vanish into nothingness. You can no longer die of waste removal related diseases like kidney failure, and indeed can donate both kidneys to science if you are so inclined. You still need to breath, but otherwise are completely biologically self-sufficient. You can still eat for pleasure.

(4)You gain the ability to spawn a 100 dollar bill in your hand once a day for the rest of your life. You lose the power if you reveal it to anyone, but so long as you keep the source of your money a secret, you effectively have a 36,500 a year source of income even if you do nothing.