Correct Answer: Only conclusion III follows

Solution : The possible Venn diagram, according to the given statements is as follows –

Let's analyse the conclusions –
Conclusion (I): Some men are drivers – From the Venn diagram, it is evident that there is no definite relation between men and drivers. Thus, this conclusion does not follow.
Conclusion (II): No shopkeeper is an engineer – From the above diagram, it is clear that the circles of shopkeeper and engineer are independent and don't define any relation between them. But some shopkeepers are part of drivers and no driver is an engineer, and some shopkeepers who are drivers are also not engineers. But no shopkeeper is an engineer is not clear from the diagram. So, this conclusion doesn't follow.
Conclusion (III): Some shopkeepers are not engineers –  From the above diagram, it is clear that some shopkeepers are drivers and no driver is an engineer as defined by the diagram. Thus the shopkeepers who are drivers are also not engineers. So, this conclusion follows.

So, only conclusion III follows. Hence, the third option is correct.

Correct Answer: North

Solution : Firstly, we will draw the diagram as per the given instructions –

So, from the above diagram, C is in the north direction concerning B's position. Hence, the third option is correct.

Correct Answer: (2)

Solution : The error lies in the second part of the sentence.

When using between in the context of dates, it is followed by the starting and ending points without the preposition to in between. So, the correct form is "between 10th May and 10th June".

Therefore, the correct sentence is: Our summer vacation is between 10th May and 10th June.

Correct Answer: Santoor

Solution : The correct answer is Santoor.

Pandit Shivkumar Sharma was an Indian classical music legend who was an exponent of Santoor. He learned the basics of music from his father, Uma Dutt Sharma, a vocalist and a tabla player. He was born in Jammu and Kashmir and died at age 84 in May 2022.

Correct Answer: IJSO

Solution : Let's check the options–
First option: CBUV; C – 1 = B; U + 1 = V 
Second option: YXTU; Y – 1 = X; T + 1 = U 
Third option: RQOP; R – 1 = Q; O + 1 = P
Fourth option: IJSO; I + 1 = J; S – 4 = O

So, only the fourth option is different from the others as the difference between the place values of the letters is different. Hence, the fourth option is the correct answer.

Correct Answer: ferromagnetic

Solution : The correct option is ferromagnetic.

Nickel (Ni) and cobalt (Co) are both transition metals and are classified as ferromagnetic elements. Ferromagnetic materials are characterised by the presence of magnetic moments (spins of electrons) that tend to align in the same direction, leading to strong magnetic behaviour. Both nickel and cobalt exhibit this property, and they are commonly used in the production of magnets and various magnetic materials.

Correct Answer: 221

Solution : Given:
4, 11, 21, 37, 62, 99, 151, ?

Here, the pattern followed is as follows –

So, the missing number in the series is 221. Hence, the fourth option is correct.

Correct Answer: 509 B.C.

Solution : The correct choice is the first option.

Explanation: The passage explicitly states: "Rome's era as a monarchy ended in 509 B.C. with the overthrow of its seventh king," signifying the transition from a monarchy to a republic. This date marks the shift in Rome's governance from a monarchy ruled by kings to a republic, where power shifted to elected magistrates and the Senate.

Therefore, the correct answer is: that Rome became a republic in 509 B.C.

Correct Answer: (2)

Solution : The second option is the correct answer: "accustom yourself to"

The verb "accustom" means to make someone or something used to something. It is always followed by the preposition "to," not "with."

Hence, the correct sentence is: "You must accustom yourself to new ideas."

Correct Answer: Electrical impulses

Solution : The correct option is Electrical impulses.

Electrical impulses or action potentials are used by the brain to transmit signals. These are fast changes in the electrical potential across neuron cell membranes that allow communication, and information transmission between different regions of the nervous system, and throughout the body.