Whimsical Whatnot and An Excuse for Not Posting

Pardon the pause in posting!  Summer is upon me, and so too is the languor of its lazy days.  (Well, perhaps I cannot claim my own summer days are quite "lazy," but though there is not always less for me to do there tends to be more time to do it in.  In a way, I sometimes feel I have merely exchanged one busy job for another.)

Here, to tide you over until I come up with another, more proper post, are a few dust bunnies out of my "Wit and Whimsy" drawer.  As ever, they are of my own composition and their meanings may be found above under "Answers."

Riddle 1G:

Half a morning

Half a night

Between the dark

And the light

What am I?

Riddle 2G: 

Rings like eyes

Legs like knives

Open and shut

What was whole

Is now cut

What am I?