Answer:
Forward Iβm heavy, but backwards Iβm not.
What moves without seeing and cries without eyes?
Sleeping during the day, I hide away. Watchful through the night, I open at dawn's light. But only for the briefest time, do I shine. And then I hide away. And sleep through the day.
The weapon of choice to create the biggest shock.
What do you throw out when you need it but put away when you donβt?
I always have to work with something in my eye. What am I?