Did you try wolfram alpha yet ?

I must say it works pretty nice, for example, i sometimes tease my romanian colleague about stuff like “well, the GPD in Romania is smaller then the average shoe size..” but now you can really look up facts, it’s great, do side by side comparisons, simply amazing

I can even look up musical stuff, for instance, i looked up the blues scale and it even told me how to play it on a piano, simply amazing stuff.

check it out for yourself