Is it possible that X and Y are uncorrelated but X can significantly predict Y? I was just wondering is it possible that X and Y are uncorrelated but X can significantly predict Y?
If so, how would you explain and interpret that?

Yes.
Take for example the unit circle coordinates for (x, y).  They are uncorrelated, yet if you know x you know that y can only take on 2 values -  or 1 exactly (y=0) if x =1 or -1.
More generally marginal independence does not imply conditional indedepedence. That is there might be a third variable z that allows you to predict y from x knowing z.
See Examples of marginal independence, conditional dependence
