Verbal Reasoning - Mental Ability Questions

Which pattern will the given transparent sheet resemble when it is folded at the dotted line?

Select the odd word from the given alternatives

Select the related word/letters/number from the given alternatives.
Nephrology : Kidney : : Ichthyology : ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
Shy, Food, Plate, Recess, ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.

employ, oyster, errors, ornate, tennis, ?

If 15@7=44; 5@4=18; 6@17=46; then what is the value of 17@4=?

In the following question, by using which mathematical operators will the expression become correct?
27 ? 9 ? 18 ? 24 ? 12

In a certain code, 329 means 'you are bad', 419 means 'bad is good' and 195 means 'nothing is bad'. ___ represents 'good'.