Answer 1

It becomes easy to code when u know the name of inbuilt functions & methods of programming language...
U can google these things...

C++ :
http://en.cppreference.com/w/cpp/keyword
Ruby :
https://docs.ruby-lang.org/en/2.2.0/keywords_rdoc.html
Python :
https://www.programiz.com/python-programming/keyword-list#break_continue