What is the number of signals that can be sent by 6 flage of different colour taking one or more at a time ?

The number of signals that can be sent by 5 flags of different colours, taking one or more at a time is :

The number of signals that can be sent by 5 flags of different colours, taking one or more at a time is :

The number of signals, that can be sent by 5 flags of different colours , taking one or more at a time is :

The number of signals that can be made by 4 flags of different colours, taking one or more at a time is (i) 48 (ii) 52 (iii) 64 (iv) 56

The number of signals that can be made with 3 flags each of different colour by hoisting 1 or 2 or 3 above the other,is:

The total number of signals that can be made with 7 different coloured flags is

The number of different signals which can be given from 7 different coloured sheets, taking one or more at a time is