I'm not convinced they couldn't. Depends what you mean by Einstein. You won't be formulating GR, but an IQ test could be doable. At least if you have enough IQ

I'm not convinced they couldn't. Depends what you mean by Einstein. You won't be formulating GR, but an IQ test could be doable. At least if you have enough IQ to figure out how to solve IQ test problems on paper. Which shouldn't be that hard.