Selected more or less at random (in other words I just thought them up). Pick a power:
Telepathy. You can read minds and transmit your thoughts to any person within a 100-foot radius of yourself. You cannot control people's minds, nor alter their memories, possess their bodies, or any other of the sort of things characters like Professor X do all the time. You can read people's minds and transmit your thoughts, nothing more. Most of the time you can read an individual's mind without that person being aware, but some people with particularly strong wills/psyches may be able to sense your presence, or even resist to some extent.
Light Emission. Your body is capable of radiating a white light of any intensity up to and including a "photonic burst" capable of temporarily blinding/stunning anyone within a 30-foot radius. After emitting such a burst your powers need to to recharge for five minutes before you can emit another photonic burst.
Falcon Form. You can shape-shift into a large adult falcon, and in that form can do anything a falcon can do, i.e. fly, swoop down on prey/enemies, see things really far away in great detail, have a hankering for rodents, etc., etc. It's totally awesome, but there is a caveat: The longer you remain in falcon form the greater the risk of losing yourself to the beast and never coming back. Four hours is the maximum safe period in falcon form; at eight hours the chances of your coming back are 50%, down to 25% at sixteen hours. 24 hours in falcon form and you are stuck that way forever.
Touch of Death. Direct, skin-to-skin contact with another living creature causes instant death to that creature. You cannot control it or turn it off; anyone or anything you touch will die. Direct skin contact is a must, even thin gloves will block the effect. No cause of death for the victim will ever be determined; all biological functions simply stop at your touch. Pets such as dogs or cats are usually protected by their fur, but will die if direct contact is made with their skin.
Clarifications shall be offered as requested.
UPDATE: Telepathy deleted as an option. Poll reset.