What Deficiency does the below rebus represent?

VIT_MIN

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?