Correct Answer: Lionel Messi

Solution : The correct answer is Lionel Messi. 

Lionel Messi won the FIFA Ballon d'Or award for the fourth time in a row in January 2013. Messi's fourth award lifted him above three-time FIFA winners Zinedine Zidane of France and Brazil's Ronaldo.

Messi has spent most

Correct Answer: $91^\circ$

Solution :
We know that the sum of all the angles of the triangle is $180^\circ$
⇒ $\angle A + \angle B + \angle C = 180^\circ$
⇒ $66^\circ + 50^\circ + \angle C = 180^\circ$
⇒ $116^\circ + \angle C = 180^\circ$
⇒ $\angle C =

Correct Answer: Eastern Railway

Solution : The correct option is Eastern Railway.

These are the cities located in the state of West Bengal. It covers parts of the eastern and northeastern regions of India. Howrah Division is the busiest and oldest railway division.

Correct Answer: Nitrogen oxide and sulphur dioxide

Solution : The correct answer is Nitrogen oxide and sulphur dioxide.

Acid rain is caused by the Nitrogen oxide and sulphur dioxide pollution because of which these gases dissolve with water vapours in the clouds and forms nitric acid and sulphuric acid respectively,

Correct Answer: $\sqrt{\frac{b+a}{b-a}}$

Solution : Given, $b \cos \theta=a$
⇒ $\cos \theta=\frac{a}{b}$
We know that $\sin^2 \theta + \cos^2 \theta = 1$
So, $\sin^2 \theta + (\frac{a}{b})^2 = 1$
⇒ $\sin^2 \theta = 1-(\frac{a}{b})^2$
⇒ $\sin \theta = \frac{\sqrt{b^2-a^2}}{b}$
Now, $\operatorname{cosec} \theta+\cot \theta=\frac{1}{\sin \theta}+\frac{\cos \theta}{\sin \theta}$
⇒ $\operatorname{cosec} \theta+\cot \theta=\frac{b}{\sqrt{b^2-a^2}}+\frac{\frac{a}{b}}{\frac{\sqrt{b^2-a^2}}{b}}$

Correct Answer: 102

Solution : Given:
STEAMER is coded as 81, and CRUISE is coded as 75.

Place values of the letters of STEAMER are→S = 19; T = 20; E = 5; A = 1; M = 13; E = 5; R = 18
Now, add the place values→19

Correct Answer: Mother board

Solution : The correct answer is Motherboard.

A computer's printed circuit board motherboard is the biggest board in the computer system and is the foundation of the device. The motherboard, or primary printed circuit board, is connected to all of a computer's internal components and external

Correct Answer: 2394

Solution : Given, HCF = 9
$\therefore$ 1st number = 14 × 9 = 126
Also, 2nd number = 19 × 9 = 171
⇒ LCM of 126 and 171 = 9 × 14 × 19 = 2394
Hence, the correct answer is 2394.

Correct Answer: $108\sqrt{3}\operatorname{cm^2}$

Solution : Given that the height ($h$) of the equilateral triangle is 18 cm.
$ h = \frac{\sqrt{3}}{2} \times a $
$ a = \frac{2h}{\sqrt{3}} = \frac{2 \times 18}{\sqrt{3}} = 12\sqrt{3}\operatorname{ cm}$
The area (A) of an equilateral triangle,
$ A = \frac{\sqrt{3}}{4} \times a^2 $
On

Correct Answer: Anders Celsius

Solution : The correct option is Anders Celsius.

Anders Celsius, who is credited with founding Swedish astronomy, is most known for creating the Celsius temperature scale, often known as the centigrade scale, on which the boiling point of water is 100 °C and the freezing point