As for the number of MEPs in the European Parliament, this is limited to a number that "shall not exceed 700".

BBC: Europe: The issues

Reports suggest the number of tickets per buyer will be limited, and that once an applicant is successful they will not be allowed to purchase any more.

BBC: London 2012: Olympic ticket ballot to be prioritised

The ICC has not proposed a precise format, but it is likely teams would have a limited number of challenges.

BBC: England Tests may trial referrals

Not surprisingly, therefore, the number of firms willing to pitch for water business in developing countries is strictly limited.

ECONOMIST: Clean up��or risk many deaths