This puzzle consists of three riddles. For each riddle, give the solution and then, finally, the word that connects these solutions.
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Take a look at my toe,
you could really say it's odd.
Hot or cold, you should know,
it's my temperament, not my blood.
--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--
If you know me, I'm very deep
but not sweet to your taste.
With time or in a heartbeat,
I give life or lay waste.
--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--<<O>>--
Though I have no head, have no hands,
everything I'll be shaking.
More than water or desert sands,
everything I'll be shaping.
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´ `--´ `--´ `--´ `--´ `--´ `--´ `--´