MAQ Software Interview Experience | Set 12 (Written Test)

I got interviewed by MAQ via Skype and they asked me below three question and the duration was 20 min :- 1. Write a program to print number pad from mobile

 Output: 
 1  2  3 
 4  5  6 
 7  8  9 
    0   

2. Print individual digits as words without using if or switch 3. Write a program to find the closest prime number to a given input