Find the missing number from the given responses.
72        44        68
91         ?         86
43        66        37 

Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
33 * 11 * 3 * 6 = 115 

Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
58 × 12 = 4, 37 × 96 = 5, 11 × 20 = 2, 42 × 12 = ? 

If '+' means '÷', '–' means '+', '×' means '–' and '÷' means '×' then, 8 ÷ 4 - 6 + 3 × 4 =?  

Ajit is ranked seventh from the top and twenty-fifth from the bottom in a class. How many students are there in that class? 

If the average weight of 4 students is 65 kg. and the weight of 3 students are 60 kg., 65 kg. and 70 kg. respectively, then what would be the weight of the fourth student? 

From the given alternative words, select the one which cannot be formed using the letters of the given word.
TAMBOURINE  

Five friends Lalit, Feroz, Shahid, John and Manjeet are the Painter, Singer, Dancer, Poet or Sculptor. Lalit and Feroz are not Sculptor or Dancer. John and Manjeet are not Poet or Painter. Shahid is neither Painter nor Dancer. Manjeet is not a Dancer. Feroz and Shahid are not Poet or Singer. Who is a Poet?