Ask it to calculate the square root of minus one
Well, Doris Day was "quite bright" but I'm not sure that "windy Doris" has the same intellectual strength, although "she" seems to do the physical bit OK
PS: Glad our conservatory roof is now screwed down properly now. About 4yrs ago, some of the original screws had rusted through, and one Feb morning I came downstairs to get ready to go to work when I heard this repetitive loud banging from that direction, to then see one edge of the roof jumping up and down by about 6" in the middle. Rushed outside and threw some full 5l containers of what ever I could lay my hands on onto the roof and, phew, those held it down for some months until I could get someone to come and fix the problem (although, when I saw how they fixed it - screws straight through the polycarbonate into the wood bearer, I realised that I could have done that myself and saved £250!
).