Readless I wouldn´t overcall KQo in the blind vs. UTG-raiser. Often you´re dominated when you get action, so I´d squeeze as a bluff or just muck it (preferred line).

As played I don´t understand the flop-lead, you´re massively overrepping your hand, fold against the raise on the flop, imho.

I would fold pre, would like a call more if it was suited but even then I like a fold more.

As played, if I lead I try to get value from worse hands and worse hands aren't raising you here with one player still left behind him so I would fold vs the raise. I would only lead if the CO was a fish or UTG was a fish...

you should have a tighter calling range when UTG raises, since EP ranges should be narrower in terms of value

whats wrong with calling the flop ?

If I hit top pair there I am all the way to the river check - call ? 

it ia  very small range that it beating KQ 

OP, you basically get yourself into marginal situations, because you flatted with medium strength hand ranges OOP. If QK was suited, i would be more willing to play the hand, due to the extra equity coming from FD, or BDFD, however with QKo, its better to fold.

I wouldnt construct a donk-betting range vs any opponent, unless i have some type of read on villain, in this situation, its better to CHeck-call 2-streets, and evaluate river type of scenario