I am the part you seldom see, yet without me, towers fall. I drink in the dark so others can eat in the light. Pull me up, and I may take the past with me. In numbers I hide at the base of powers, in words I hide at the base of meaning. What am I?

I'll almost always sink in water, no matter how many times I'm skipped I could roll or just sit there, depends on my size and shape I'm almost everywhere in some way If you can't get this you might be between me and a hard place What am I?

A vast expanse, a heavenly sea, The Milky Way, Andromeda galaxy. But look closely, and you will find, they are made up of millions of my kind. Hurry, make a wish, and don't delay! Send me your dreams before I fade away.

A head with no brain Leaves, but no tree A homophone to the masses pleading to be free

You can eat and drink from me, but I'm hard to crack.