While Macedonia is indeed a candidate member for the EU, admittance to the EU would not automatically mean Macedonia would get the Euro as a currency. The procedure for switching to the Euro is separate from becoming a EU member.
The prescription label for a bottle of Vicodin, or any other opioid, would not have the word "narcotic" written on it. Also the strength of the medication is not printed on the label, Vicodin comes in several different strengths, 5/325 mg, 5/500 mg, 7.5/750 mg, 10/325 and 10/500 mg are some of the common strengths, the prescription label would always have that printed on it.
Unloading a large container ship takes several days, not just a few hours.
In the final scene, Sherlock claims to have bred a new species of bee from a single individual. Assuming that individual was a queen, any cross breeding would have produced a hybrid variety or, at best, a subspecies, both of which could easily produce viable offspring and would NOT have been sterile, as he suggested. Creating a new species would require tens or hundreds of thousands of generations.
This is an 'elementary' detail which the encyclopedic Holmes would not have stumbled over.
This is an 'elementary' detail which the encyclopedic Holmes would not have stumbled over.
At the end of the episode, Sherlock says that the bees should not be able to produce offspring because they are different species. That is not correct, different species can produce offspring (e.g. a mule) but the offspring will be unable to reproduce (e.g. mules are sterile).
Watson asks if Holmes means the whale with the horn on its head, which Holmes confirms. But a narwhal has no horn; a male typically has its upper left canine tooth growing from its mouth as a spiral tusk.