Super Power... With a Flaw

but you are knocked unconscious by a mysterious force every 5 minutes. 

I am able to punch through walls with no harm to myself.

Edit: I give up. Have fun you two haha

but you only stop time for two seconds. 

I can Freeze water at will... 

EDIT: Oops, too late:

But Will can melt water just as quickly.

My eyes can focus and zoom in on anything, from microscopic cells to distant galaxies.

But doing cause your brain to overload, inducing you in a permanent coma. 

I Can shoot fireballs from my hands...

 ...but you can only do it once, then your hands have burned off.

The ocean's creatures obey my every command.

But you have a phobia of water. 

I Can control electricity...

...by flipping a light switch. Like everyone else.

I can transform anything into marshmallows.

The Marshmallows are toxic to you but everyone else is immune.

I Can Control Wind... 

...*break wind

I can duplicate any amount of string...

However it duplicates into tiny little threads that you can't see unless it's under a microscope. 

I Can Revive the dead...

For exactly one minute, just enough for them to be ticked of at you for having to die again. And you can’t raise the same person twice.

i have the ability to smell brick walls from exactly 8.77901 miles away and closer. 

But you have a Permanent cold.

I Have super-strength...

Compared to a mouse.

Similar to Spiderman shooting web, I have glands in my wrists that produce silk rope which I can shoot out at similar high velocity

However when you try to swing from building to building your wrist cannot hold the rest of you up and your arm rips off sending you plummeting to the ground. 

I have the ability to turn intangible and transform back to normal at will... 

But each time you 'turn', you lose all memories made up to that point

After many years of mental and physical training, I can Kamehameha like Goku

But you Suffer from a diseases that renders you incapacitated in a coughing fit for five minutes every hour. 

I can control metal...

who turns out to be a carnivore you figure out as he happily munches on your flesh. 

I have the power of wishes...

You can wish for anything, but it doesn't come true.

I can change the color of my eye...