US President quiz

due to next coming presidential elections in United States, the game proposes to guess 5 consecutive questions about the order number of US presidents from georges washington until last active one : barack obama.
It will prompt the end users the following question :
which president number is ?
The end user has to reply with election number.
If the answer is correct, then the current score is incremented by one.
George Washington is assigned president number one
Barack Obama is assigned president number 44