Answer:
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
The letter S is added to pluralise most words in the English language. eg. Letter to Letters Word to Words and Language to Languages. But I am a word that is pluralised with the addition of the letter C.
The more there is the less you see.
What gets bigger when more is taken away?
Crooked as a rainbow and slick as a plate, ten thousand horses can't pull me straight. What am I?
A little house full of meat, no door to go in and eat.