Si Jim, isang bagong kawani ng pamahalaan, ay nagpunta sa isang maillit na disyertong isla malapit sa Boracay, upang suriin ang tore ng parola dahil sa mga nagdaang bagyo.
Dahil napakaliit lang ng isla, tatlong tao lang ang nakatira dito. Sinasabing may kunting tililing ang tatlo dahil kapag tinatanong,
ang isa sa kanila ay laging nagsasabi ng totoo, ang pangalawa naman ay laging nagsisinungaling, ang pangatlo ay di malaman kung nagsasabi ng totoo, o hindi.
Noon lang narating si Jim sa isla at di niya alam kung nasaan ang parola. Ilan sa tatlong tao ang dapat niyang tanungin upang matiyak kung nasaan ang parola?
Where is the lighthouse?
Jim, a recently hired government employee, went to a small desert island near Boracay to inspect its lighthouse tower due to the recent typhoons. The island is so small that only three persons live there. The three are somewhat eccentric because, if asked, one of them always tell the truth, the other alway tell a lie, and the third either tells the truth or tells a lie. It was Jim's first visit to the island and he did not know where exactly the lighthouse is. How many of the three persons did he have to ask to know for sure where the lighthouse is?