Brown rust of wheat is caused by

Select the option that is related to the third term on the same basis as the second term is related to the first term.

ACT:BFY ∷ BAD :?

Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.

Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the odd letter-cluster.

Study the given pattern carefully and select the letter that can replace the question mark (?) in it.

A paper is folded and cut as shown below. How will it appear when unfolded?

Three of the following four figures are alike in a certain way and one is different. Select the odd one.

Replace the question mark with an option that follows the same logic applied in the first pair.

Seismology: Earthquake::Geology: ??