Promising eggs

Egged on you feel a challenge
not to answer in one go.
You can through braincells scavenge:
there is no reply that you know.

That’s why never put all eggs
in one basket, for it might fall.
Better choose some different kegs
so in one go you don’t smash all.

Should you scramble eggs for meals
collect shells – they don’t taste good.
Between your teeth it feels
as if you chewed stone or wood.