A quibit is (essentially) a probability of being a zero or a one. Or at least sort of. quantum mechanics has this thing called probability amplitudes which are complex numbers, not a regular percentage, but when you square those you get normal probability

so because these are weird, you don't just have one degree of freedom that you could just represent with normal numbers probability. Each Qubit can be represented by a position on a "bloch sphere".

So you can think about each gate doing some math between two those qubits.

At the end of the whole thing though, you end up with a series of classical bits