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

Among 5 boys, Vasant is taller than Manohar, but not as tall as Raju. Jayant is taller than Dutta but shorter than Manohar. Who is the tallest in the group? 

Pointing to a boy Veena said, "He is the son of only son of my grandfather". How is that boy related to veena? 

A boy started from his home in the morning and walked 8 km. in the direction of Sun. Then he walked 3 km. after turning to the right. Then he walked 2 km after turning to the right, and then walked 1 km. after turning to the left. Then he walked 1 km. after turning to the right and then 4 km. after turning to the right. How far is he now from the starting point?

If in a certain language, PLAYER is coded as QNDCJX, then how SINGER will be coded in the same language? 

If 25 A 9 B 3=75 and 15 A 6 B 2=45, then 16 A 8 B 2=?

How many triangles are in the following figure?

If the ink of one pan ends up writing 10 page, how many panes will be required to write 20 copies of 40 page?