(1) Whether any Cuban engineers were employed by his department on 31 March 2010; if not, (a) why not and (b) what was the last date of employment of Cuban engineers; if so, (i) how many and (ii) what are the relevant details; (2) whether the Cuban engineers were employed in each province; if not, why not; if so, what are the relevant details; (3) whether there is any specific and/or special project that is run by the Cuban engineers; if not, why not; if so, what are the relevant details; (4) whether there is any specific timeframe for Cuban engineers to work in the country; if not, why not; if so, what are the relevant details?