SSC CPO 16th-March-2019-Shift-3

If ‘A’ denotes ‘$$\div$$’, ‘B’ denotes ‘$$\times$$’, ‘C’ denotes ‘$$+$$’ and ‘D’ denotes ‘$$-$$’, then what will be the value of the following expression?
12 B 12 A 4 C 5 D 1

Three of the following four letter-clusters are alike in a certain way and one is different. Find the odd one out.

Select the option that is related to the third number in the same way as the second number is related to the first number.
25 : 15625 :: 30 : ........

Two statements are given, followed by two conclusions I and II. Assuming these statements to be true, even if they seem to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
All plants are flowers.
No flower is blue.
Conclusions:
I. Some plants are blue.
II. Those plants that are not flowers are blue.

Three of the following four words are alike in a certain way and one is different. Find the odd one out.

Which letter-cluster will replace the question mark (?) in the following series?
XCA, WDZ, UFX, RIU, NMQ,?

Three different positions of the same dice are shown below. Which number is on the face opposite the face showing 4?

Select the option in which the given figure is embedded.

Select the option in which the words share the same relationship as that shared by the given set of words (in the same order).
Hand : Finger : Ring

In the following number series, two numbers have been put within brackets. Select the most appropriate option for these numbers in relation to their inclusion in the series.
2, 4, 6, 8, 10, (12), 14, 16, (18), 20