What’s the least number of chairs you would need around a table to sit four fathers, two grandfathers and four sons?

Answer
Four. Two of the four fathers could be grandfathers and they are all definitely sons already.
What’s the least number of chairs you would need around a table to sit four fathers, two grandfathers and four sons?

Answer
Four. Two of the four fathers could be grandfathers and they are all definitely sons already.