I answered their questions 'to the best of my knowledge'. [=I gave the best answers I could based on what I knew, but I might have answered differently if I had known something else]
No one arrived late 'to my knowledge'. [=I am not aware that anyone arrived late, but it is possible that someone arrived late and I don't know about it]
They went on vacation, 'safe in the knowledge' that the farm would be well cared for while they were away.
(..) - Stop! Stay here until I get back. - You only have one to go? - Well. - Did you reach in to pull her out? - You know my birth knowledge is limited. Don't worry, Katie, be calm and lie down... Argh! I'm too afraid. - Prepare the ropes. - There's another one! (..)1989 Dva lidi v zoo