How to use "tricky" in a sentence

The tricky spelling of the title was not Tina's idea, but most of the rest of the program was her creation, and she remained pleased with what she had wrought

He would most likely die on the stage, in the middle of puzzling out a tricky production problem.

"If I understand you, the Chinese could use Wuhan-400 to wipe out a city or a country, and then there wouldn't be any need for them to conduct a tricky and expensive decontamination before they moved in and took over the conquered territory."