_____________is the past participle form of ‘strike’

I had hardly closed my eyes………..the telephone rang.

Supposing war broke out, what ________ you do?

Which among the following is in the alphabetic order?

If '2' is added to each odd digit and '1' is subtracted from each even digit in the number '2368547', which of the following numbers will appear twice in the new number thus formed

What does EBCDIC stands for?