Laptop keyboard problem

Hello,
On my wife’s laptop,
when I press m a 0 appears
when I press j a 1 appears
when I press k a 2 appears
when I press l a 3 appears
when I press ; a - appears
when I press u a 4 appears
when I press i a 5 appears
when I press o a 6 appears
when I press p a * appears

She insists that she did not spill any liquid on it…......Did she???
When I hook up a wireless keyboard, all is OK.
What is the problem with the laptop keyboard?
Thanks……….