What is the worlds largest rodent

Question
Where did doughnuts originate?
Answer
Holland

Question
The average male loses a lb (weight ) of what in 10 years?
Answer
Beard

Question
What foodwise is a Fieldlane Duck
Answer
Baked Sheep’s Head

Question
In computing there are 8 bits to a byte what are 4 bits called?
Answer
Nibble