Intelligence

'Throw it in the basket', said the Corkman, Til read it later'. A Kerryman and a Corkman were taking an intelligence test.
'What bird does not build its own nest?' the examiner asked.
'The canary', said the Kerryman, 'he lives in a cage'.
'The cuckoo', said the Corkman.
'Very good', said the examiner to the Corkman, 'how did you know? '
'Everybody knows the cuckoo lives in a clock', said the Corkman.