Find the odd word/letters/number pair from the given alternatives.

Find the odd word/letters/number pair from the given alternatives.

Find the odd word/letters/number pair from the given alternatives.

Select the related word/letters/number from the given alternatives.

27 : 125 : 64 : ?

Select the related word/letters/number from the given alternatives.

LNPR :TVXZ : NPRT : ?

Select the related word/letters/number from the given alternatives.

Bacteria : Microscope :: Moon : ?

From a point on a bridge across the river, the angles of depression of the banks on opposite sides of the river are 30° and 45° respectively. If the bridge is at a height of 2.5m from the banks, then the width of the river is (take √3 = 1.732)

The chord AB of a circle of centre O subtends an angle θ with the tangent at A to the circle. Then measure of∠ABO is