ingenuity

US /ˌɪn.dʒəˈnjuː.ə.t̬i/
UK /ˌɪn.dʒəˈnjuː.ə.t̬i/
1.

Khéo léo

someone's ability to think of smart new ways of doing something:

:
I was impressed by the ingenuity and energy of the contestants.