Question Discussion & Solution

The cube is coloured on two adjacent faces (let us consider that the top and back surfaces are coloured)

So, the cubes on the surface having no colour will be 12 cubes on the front surface, 6 cubes on the right surface, 6 cubes on the left surface and 4 cubes at the bottom two surface.

So, cubes with no colour are:

12 + 6 + 6 + 4 = 28

Again, small cubes inside the big cube with no surface coloured is 8.

Therefore, cubes with no colour are = 28 + 8 = 36

The correct answer is Virus.

• A disruptive program that spreads from program to program or from disk to disk is known as a Virus.
• A computer virus is designed to spread from host to host and has the ability to replicate itself. 
• When this replication succeeds, the affected areas are then said to be "infected" with a computer virus.
• A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code.
• In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.
• Once a virus has successfully attached to a program, file, or document, the virus will lie dormant until circumstances cause the computer or device to execute its code. 

The correct answer is connective.

• Blood is a type of connective tissue. 

Key Points

• ​Connective tissue
  • This is a kind of biological tissue that supports, connects, or separates different types of tissues and organs of the body.
  • Examples- Tendons, ligaments, cartilage, bone, blood.
• Blood has a fluid (liquid) matrix called plasma, in which red blood corpuscles (RBCs), white blood corpuscles (WBCs), and platelets are suspended.
  • The plasma contains proteins, salts, and hormones.
  • Blood flows and transports gases, digested food, hormones, and waste materials to different parts of the body.

Additional Information

• Epithelial tissue:
  • The epithelial tissues are formed by cells that cover the organ surface such as the surface of the skin, the airways, the reproductive tract, and the inner lining of the digestive tract.
• Muscular tissues:
  • Muscular tissue is a soft tissue that composes muscles.
  • Skeletal muscle (voluntary muscles), cardiac muscle (involuntary muscles) are examples of it.
• Nervous tissue:
  • The main components of the nervous system are the brain, spinal cord, and nerves which regulate and control body functions.
  • It is made up of neurons that have important functions in the nervous system.

According to given information,

Whatever be the distance covered by the person, when the man stops he is facing south.

Hence, the answer is ‘South’.

Madrid is the capital city of Spain. Similarly, Moscow is the capital city of Russia.