JUST MATHEMATICS RIDDLES...?

[..>BAEK<..]

THERE ARE TWO FATHER'S AND TWO SON'S...

WHEN THEY BUY A CINEMA TICKET'S, THEY JUST BUY FOR THREE,

HOW CAN??

ALL OF THEM ARE 17+..

 

[onewayJesus]

They are just three people. Grandfather, father and grandson.

Another way to put it. A son, his father, and his father!

 

[hzattari]

simple give me ten point to be the one to answer first
Grandfather
Father
Son