Name That Kitchen Utensil

I admit that I've been really sucky at the pccx challenge even though I was so excited for it to start.  Now that I'm starting a new job tomorrow, I'll either get back on the horse and start getting stuff done again, or really enjoy my days off and do nothing, we'll see LOL

So since it was kitchen week, I went into my utensil drawer and pulled out 2 ziploc bags of crap that my father purchased from a garage sale.  Why he bought 2 is beyond me since the same items were in both. Needless to say, I tossed one in the trash and kept the other.  Now, I must try to figure out what these utensils are! 

The end of this is flat like a screwdriver. The circles near the handle are not large enough to put your fingers through. I'm at a complete loss.

Clearly a grapefruit utensil, right?

WTH is this?  Plastic; Open circle at one end; Corkscrew like at bottom with a pointed edge AND its hollow through the corkscrew thing. 

I know it shows both, but this image is for the cheese slicer?  Question mark because that's what I think it is, but I'm not really sure LOL

This looks a lot like 2 pics above, except its metal and the corkscrew plastic piece isn't hollow.  Still has the round circle at the top. Anyone know what it is, anyone?

Ummm??? Pouring spout at the top. "Teeth" at the bottom. Name this utensil. Please.