Verbal Reasoning - Mental Ability Questions

In the following question, by using which mathematical operators will the expression become correct?
15 _ 3 _ 4 _ 20

A is to the south­east of B. In which direction is B with respect to A?

Prasad moves towards North a distance of 10 km after which, he turns towards East and travels 20 km at which point, he turns South and continues for another 10 km. Finally, he moves 7 km West. How far is he from the starting point?

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Spinach: Fenugreek: Celery

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. Boxing, Tennis Doubles,Volleyball, ?

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

EF, K, JK, U, OP, ?

Four words have been given below of which three are alike in some way and one is different. Choose the odd one out.

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

Leaf, Caterpillar, Frog, ?