Match the following. 
Step 1: Understanding the Concept:
This question requires knowledge of fundamental concepts in color theory to match the visual examples with the correct terms.
Step 2: Defining the Terms:
P. Complementary: Colors that are opposite each other on the color wheel (e.g., red and green). They create high contrast.
Q. Spectrum: A continuous band of colors, like a rainbow, showing the full range of visible light.
R. Cool: Colors associated with coolness, like blues, greens, and violets.
S. Harmony: The pleasing arrangement of colors in a design, based on established color schemes (e.g., analogous, triadic).
Step 3: Analyzing and Matching the Images:
Image 1: Shows a continuous gradient of all colors, transitioning smoothly from one to the next. This is a visual representation of the color Spectrum (Q).
Image 2: Displays several palettes composed exclusively of blues, greens, and purples. These are classic Cool (R) colors.
Image 3: Shows different sets of colors that are aesthetically pleasing and work well together. This illustrates the concept of color Harmony (S).
Image 4: Shows pairs of colors that are opposites, creating strong contrast (e.g., yellow and purple, red and cyan, blue and orange). These are Complementary (P) colors.
Step 4: Final Answer:
Based on the analysis, the correct matching is:
1 $\rightarrow$ Q
2 $\rightarrow$ R
3 $\rightarrow$ S
4 $\rightarrow$ P
This corresponds to the sequence 1Q, 2R, 3S, 4P, which is option (B).
Which option will replace the question mark? 
Parts of the letters have been hidden by vertical strips in the given options. Which option contains a meaningful word with correct spelling? 


Three girls went to a square garden with their dogs. The garden was built around a banyan tree at the centre. The area around the tree was bound by a beautiful picket fence. Usha, the eldest, sat on the platform under the banyan tree while Fluffy lay at her feet sleeping peacefully in the shade. Reena and Tommy walked around the fence looking at the beautiful flowers. Madhu, the youngest of the three, was always running around shouting at Gullu who loved the challenge of chasing squirrels. Which of the diagrams correctly represents the above scenario? 
Shown below is an arrangement of closely stacked spheres. Assume each one to be in contact with its immediate neighbour. What is the total number of points where the spheres touch each other?
Shown on the left is a set of equations. Which option belongs to the same set? 
The words given below are written using a particular font. Identify the digit that does not belong to the same font.
Shown below are three perspective views of a solid object. How many surfaces does the object have? Assume hidden surfaces to be flat.
Which option will replace the question mark? 