Thank you very much!

yep. There are different meanings . Double- decker bus, double- deck on board ship, circle; layer, long fishing line having individual hooks attached by smaller lines at intervals; tier; floor. So i thought , if there is a double deck like the 2nd floor , maybe there is a double deck like the place in the train.

Thank you very much. )

Thank you very much for your help and your opinion)

I meant , can we ask 'What weather is it today?' . Is it right, if we speak about the structure of a sentence and grammar.