Granted, but you must become a biologist.
I wish I could survive on other planets.
Granted, but you’ll never survive on Earth 
I wish there would be no period cramps for all the females in the world 
Granted, but now you must make a living only off selling female sanitary products.
I wish I could have a lifetime supply of pizza.
Granted, but it’ll be the only thing you can eat or drink (Pizza smoothies Yuck)
I wish, I was a good artist.
Granted, but you’ll be able to draw only once a leap year!
I wish I could get a lifetime supply of ice-cream.
Granted, but you would be suffering from a serious case of hypothermia!
I wish I could be richer than Bill Gates.
Granted! But you’ll be older than Bill Gates by 100 years.
I wish, I could be friends with Jenson Ackles (Even in his 40s he looks Caldo)
Granted, but you would lose all your friends, family and well-wishers (Seriously, is he even worth it?
)
I wish I could slap Paris Hilton somehow.
Granted! But then you’ll somehow die (and no he is not)
I wish I could slap my husband sometimes (He gets annoying)
Granted, but then your hand with which you slapped him would ache forever.
I wish I could live next-door to Jennifer Lawrence.
Granted! But you’ll have to go all James Bond and kill her. + You have to wreck really expensive cars.
I wish I had more money than I have currently.
Granted, but the currency wouldn’t match with the country you’re living in.
I wish everyone on forum would stop referring my name to anything James Bond (It. Is. So. Annoying!
)
( I didn’t even notice your name sorry, I just like James Bond) Granted! But no one would even remember you existed on the forums.
I wish I had payed attention to your name.
Granted, but then you would be blind to other’s names on forum.
I wish that the superheroes could be real (Imagine the downfall of Hollywood and other showbiz then? 
)
Granted! But they’d actually be evil and kill everyone.
I wish that disney movies didn’t have such boring endings.
Granted! But they will all end in death.
I wish that I was at the beach.
Granted! But it’ll be below freezing and the water would be frozen.
I wish I was done with college.
Granted, but you’ll be stuck in high school then!
I wish I could own a malibu beach house.
Granted, but you’ll drown the next day.
I wish I could eat without gaining weight.
(@AS007 every country will let you convert your money into their currency!)
Granted, but you would forever remain a sorta thin skeleton.
I wish someone would give me a wish without any side-effects.