Correct Answer: Assen, Netherlands

Solution : The correct option is Assen, Netherlands.

The first edition of the World Para Table Tennis Championships was held in Assen, Netherlands, in 1990. Athletes with physical disabilities competed in various categories, showcasing their skill and determination on the international stage.

Correct Answer: Visakhapatnam

Solution : The correct answer is Visakhapatnam port.

In India, the majority of ports are found in the Western Ghats because it is a large block of uplifted land that provides favourable conditions for the construction of natural harbours and ports. A major port on the Eastern Coast is Visakhapatnam Port. It is the deepest landlocked and coastal port in India. It is also famous for iron ore exports.

Correct Answer: $\frac{24}{25}$

Solution : $\sqrt{\frac{5}{4} × \frac{64}{125} × 1.44}$
= $\sqrt{\frac{5}{4} × \frac{64}{125} × \frac{144}{100}}$
= $\sqrt{\frac{16}{25} × \frac{144}{100}}$
= $\sqrt{\frac{4×4}{5×5} × \frac{12 × 12}{10 × 10}}$
= $\frac{4}{5} × \frac{12}{10}$
= $\frac{24}{25}$
Hence, the correct answer is $\frac{24}{25}$.

Correct Answer: 12.5% decreased

Solution : Let the original price of the article be 100.
After a 25% increase, the new price $=100 + 25 = 125$
Then, a 30% decrease on the new price $=125 - \frac{30}{100}\times 125 = 87.5$
The net percentage change $=\frac{{\text{Final price} - \text{Initial price}}}{\text{Initial price}} \times 100$
$=\frac{{87.5-100}}{{100}} \times 100 = -12.5%$
Hence, the correct answer is 12.5% decreased.

Correct Answer: 8

Solution : If $x$ is subtracted from each of the numbers 20, 37, 54 and 105, then the numbers so obtained in this order are in proportion.
So, $\frac{(20-x)}{(37-x)} = \frac{(54-x)}{(105-x)}$
$⇒[(20-x)(105-x)]=[(54-x)(37-x)]$
$⇒34x=102$
$⇒x = 3$
The mean proportional between $(7x-5)$ and $(x+1)$ is the square root of their product. So, the mean proportional is $\sqrt{(7x-5)(x+1)}$.
Substituting $x = 3$ into the above expression, we get $\sqrt{(7\times3-5)(3+1)} = \sqrt{(16)(4)} = 8$
Hence, the correct answer is 8.

Correct Answer: Rukmini Devi Arundale

Solution : The correct answer is Rukmini Devi Arundale.

Kalakshetra Foundation, formerly known as Kalakshetra, is an esteemed arts and cultural academy situated in Chennai, India. Established in January 1936 by Rukmini Devi Arundale and George Arundale, the foundation is devoted to preserving traditional values in Indian art and crafts, particularly in Bharatanatyam dance and Gandharva Veda music. Recognising its significance, an Act of the Parliament of India in January 1994 designated the Kalakshetra Foundation as an "Institute of National Importance".

Correct Answer: Industrial sector

Solution : The correct answer is the Industrial sector.

There are three sectors: primary (the agriculture sector), secondary (the industrial sector) and tertiary (the transport sector). The industrial sector falls under the secondary sector. It is called so because this sector contributes the most to the tax payment structure. The film industry, information technology, etc. come under this category. This sector plays a major role in the development of India's GDP growth.

Correct Answer: Calm

Solution : Given:
Worried : Anxious :: At ease : ?

Like, Worried and Anxious are synonyms of each other.
Similarly, At ease means free from worry, or relaxed. So, from the options, Calm is the synonym for At ease.

Hence, the second option is correct.

Correct Answer: (25, 8, 41)

Solution : Given:
(23, 6, 35) (13, 5, 23)

In the given set of numbers, multiply 2 by the second number and then add the first number to get the third number.
(23, 6, 35)→6 × 2 = 12 + 23 = 35
(13, 5, 23)→5 × 2 = 10 + 13 = 23
Let's check each option –
First option: (24, 5, 33)→5 × 2 = 10; 10 + 24 = 34 ≠ 33
Second option: (16, 4, 20)→4 × 2 = 8; 8 + 16 = 24 ≠ 20
Third option: (25, 8, 41)→8 × 2 = 16; 16 + 25 = 41
Fourth option: (13, 7, 28)→7 × 2 = 14; 14 + 13 = 27 ≠ 28

So, (25, 8, 41) follows the same pattern. Hence, the third option is correct.

Correct Answer: Cenozoic

Solution : The correct answer is Cenozoic.

The Cenozoic era is also known as the "age of mammals". The Cenozoic era began approximately 66 million years ago and continues to the present day. It is characterised by the dominance and diversification of mammalian life forms, including the evolution of various orders and families of mammals that exist today.