Questions

Bula Chaudhury, Indian swimmer best known for her long-distance swimming feats.

In 2005 she became the first woman to have swum across sea channels of five continents including the Strait of Gibraltar, the Tyrrhenian Sea, Cook Strait, Toroneos Gulf (Gulf of Kassandra) in Greece, the Catalina Channel off the California coast, and from Three Anchor Bay to Robben Island near Cape Town, South Africa.

There are 16 small cubes attached to the outer walls of the cuboid.
Therefore remaining inner small cubes will be the cubes having two sides green coloured.
So the required number = 24 - 16 = 8

The given letter equation implies that 11 P in a CT means 11 Players in a Cricket Team.

12 S of Z represents 12 Signs of the Zodiac. 

It is similar to the  

1. 52 W in a Y        -  52 weeks in a year  

2. 3 H in a C          -  3 Hands in a Clock  

3. 3600 S in an H   -  3600 Seconds in an Hour 

4. 5 O in the W      -   5 Oceans in the World

Poor people have Nothing

Rich people need Nothing

If you eat Nothing you die.

Hence, it is Nothing.