actually that simply popped into the brain, a variation of the old Christmas joke I haven't thought of for years:
It was around Christmas time, and as a test who would qualify to play Santa, the store's policy was to give a simple quiz: just to make sure such candidate had something 'upstairs'
so they asked the guy
How many days of the week start with the letter T?
After deliberation he replied "Today and Tomorrow"
taken a little bit by surprise, they asked the following:
Math quiz:
How may seconds are there in a year? (and don't worry about it being a leap year)
the man scribbled some calculations on paper and after a bit of time responded
"12"
of course they were a bit shocked until he continued
"The second of January, the second of February...."
Finally a bit worried about how all this was going, and the guy seemed like a nice individual they asked
"OK, listen carefully
How many Ds are there in RuDolph the reD noseD reinDeer?
they repeated this again, especially emphasizing the letter D when pronouncing the words
the man sat and they could see him counting on his fingers, then he would shake his head and mumble "start over" and after about 5 minutes he finally said
"I think 112"
Their jaws dropped, and he could see this was probably not the right answer, so he said
"Let me try again
(to the tune of the song of course)
Dee Dee Dee Dee Dee Dee Dee.......