Correct Answer: redius

Solution : The first option is the correct answer.

The incorrectly spelled word is redius. The correct spelling is the radius, which means the distance from the centre to the outer edge of a circle.

The meanings of the other options are as follows:

• Realm refers to a kingdom or domain, often used figuratively to refer to a sphere of activity or knowledge.
• Resemble means to have a similar appearance or quality.
• Reliable means dependable and trustworthy.

Therefore, the correct answer is radius.

Correct Answer: Private sector was allowed in all industries.

Solution : The correct answer is the Private sector was allowed in all industries.

All of the options are part of the regulatory mechanisms that are in existence to enforce regulation of the industrial sector, except the "private sector was allowed in all industries". The main regulatory mechanisms in existence to enforce regulation of the industrial sector are the industrial licencing norms and controls on price fixation and distribution of selected industrial products.

Correct Answer: Mizoram

Solution : The correct answer is Mizoram.

The Chapchar Kut festival is celebrated in Mizoram. It is held annually in March after the completion of their most difficult task of cultivation. At this festival, people celebrate by dancing, performing skits and singing.

Correct Answer: Haryana

Solution : The correct answer is Haryana.

Kumharia nuclear power plant is Haryana's first nuclear power plant. It is in Kumharia village in the district of Fatehabad, Haryana. Kudankulam nuclear power plant is the largest nuclear power station in India, situated in Tamil Nadu.

Correct Answer: 207

Solution : Given:
42, 67, 96, 129, 166, ?

Follow the pattern, to obtain the next term –

So, 207 is the missing term in the series. Hence, the first option is correct.

Correct Answer: (22, 44, 76)

Solution : Given:
(18, 36, 60); (14, 28, 44)

In the above-given set of numbers, multiply the first number by 2 to obtain the second number. Multiply the first number by 4 and then subtract 12 from the resultant to get the third number.
(18, 36, 60)→18 × 2 = 36; (18 × 4) – 12 = 72 – 12 = 60
(14, 28, 44)→14 × 2 = 28; (14 × 4) – 12 = 56 – 12 = 44

Let's check the options –
First option: (21, 42, 164)→21 × 2 = 42; (21 × 4) – 12 = 84 – 12 = 72 ≠ 164
Second option: (17, 32, 60)→17 × 2 = 34 ≠ 32; (17 × 4) – 12 = 68 – 12 = 56 ≠ 60
Third option: (16, 28, 64)→16 × 2 = 32 ≠ 28; (16 × 4) – 12 = 64 – 12 = 52 ≠ 64
Fourth option: (22, 44, 76)→22 × 2 = 44; (22 × 4) – 12 = 88 – 12 = 76

So, only the fourth option follows the same pattern as followed by the given set of numbers. Hence, the fourth option is correct. 

Correct Answer: accidental

Solution : The second option is the correct choice.

Intentional means something done with purpose or intent, while accidental refers to something happening by chance or without intent.

The meanings of other options are as follows:

• Voluntary means something that is done willingly or by choice
• Designed means planned or created with a specific purpose in mind
• Calculated means deliberately planned or intended.

Therefore, the correct answer is accidental.

Correct Answer: Bopsi

Solution : Given:
1. Akram is further up the ladder than Bopsi.

2. Bopsi is in between Akram and Priya.

3. Tulsi is still further up than Akram.

So, the second person from the bottom is Bopsi. Hence, the fourth option is correct.

Correct Answer: Twice

Solution : The correct answer is Twice.

In 1991, the Indian rupee was devalued in two steps. The Indian government devalued the rupee in July and again in July/August of 1991. These devaluations were aimed at boosting exports and addressing the external payment situation. The move was part of a broader set of economic liberalization measures for opening up the economy and attracting foreign investment.

Correct Answer: 91486

Solution : Given:

Now, code the symbols with their respective numbers given in the question –

Thus by decoding the symbols, we will get the respective number 91486. Hence the first option is correct.