multiplication table in javascript
Single for loop, 80 75 72 68 bytes

I will try to make the code smaller too, but as far as single for loop goes:

for(i=5;i&lt;30;)console.log(k=i/5|0,"*",l=i%5+1,"=",k*l,++i%5?"":"\n")


Try it in your console! (Although IE gives the best results)