Pendulum Testing for Guidance/Intuition

[JackOfHearts]

I'm doing this since 5 days ago. But sometimes I get unreliable answer. Can you guess some hard calculation with it. Like asking 255*78 and getting an answer through a yes no question. I also tried to know which day it was for example the 5 November 2005 but I don't get a good answer.

It's the first time I heard of a Preconscious though.