Yes this a MINT question, and the answer can be anything from 1-1,000,000 no doubt
Roman Numerals can be counted?? (the x in taxi = 10, the v in even = 5, the m in number = 1000 and so on)
You can be really pedantic and say is it a six sided dice? - There are 3 -sided ones up to a 20 sided dice (used by the role playing gamers) so any one of those could be the answer
And yes the taxis...does the steering wheel count? spare wheel? Are they in fact Robin Reliant taxis?...and so on.
Will be very interested to see what the answer is, if they ever decide to say someones won