What Deficiency does the below rebus represent?

VIT_MIN

Prove that twice of ten is the same as twice of eleven.

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

What two things can you never eat for breakfast?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

What can you see in the middle of March and April that you can never see in any other month?

Can you count the number of triangles inside a triangle?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Joseph organises an exotic office New year party at the beach to his important fellow employees.

Following are the important people that will come to the party

1. Joseph

2. Joseph 2 girlfriends- Carol Vanstone and Tracey Hughes

3. The sales head Clay Vanstone.

4. Clay Vanstone 2 associates.

5. Mr. Jeremy and his Secret Tab.

They all need to cross a small river to reach the beach, however, Joseph has got just one boat.

There are few rules for crossing the river.

1. The capacity of the boat is limited to just two people.

2. Clay Vanstone associates will not stay with Joseph without Clay Vanstone.

3. Carol Vanstone and Tracey Hughes will not stay with the Clay Vanstone without Joseph.

4. Mr. Jeremy would never leave the Secret Tab alone.

5. Secret Tab counts as a person.

6. Only Joseph, Clay Vanstone or Mr. Jeremy can drive the boat.

7. The two girlfriends Carol Vanstone and Tracey Hughes will not stay with the Clay Vanstone without Joseph.

8. No Associates would stay with Joseph without their Clay Vanstone.

9. Mr.Jeremy will not leave the Secret Tab alone.

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.