Benedict Cumberbatch gets stuck in a little problem when his real-life arch nemesis “Murray-arty” presents him with a brain-bending challenge.
Thanks to Count von Count, who jumps in at the right moment, the “Sherlock” star is able to count up four apples and three oranges.
Also, Cumberbatch repeatedly tries to explain a rather skeptical Murray to believe that he is not actually the legendary, super-sleuth Sherlock Holmes but just an actor who plays the detective on television.
Cumberbatch reportedly recorded the segment earlier in January, when he joined actress Amanda Abbington to promote the new "Sherlock" season on PBS in the United States.
Watch Sherlock’s hilarious encounter with the Sesame Muppets in the video above.