Who's is the dumbest?

(1) A Ugandan who goes to the the bank with a spanner to open a bank account.
(2) A Nigerian who removes his shoes to enter a taxi.
(3) A Kenyan who went to bed with a ruler just to know how long he has slept.
(4) A Tanzanian who watches news on tv and waves at a news reader.
(5) A Zambian nurse who wakes up a sleeping patient simply because he forgot to give him sleeping pills.
(6) A South African who lowers his tv volume because he wants to read a text message.
(7) A Ghanaian who sprayshimself doom to chase away mosquitoes
(8 A Zimbabwean who polishes his shoes to take a passport size photo...