Class 3 olympiad maths

In this number series, What will come after 78?

There are 55 students in class 3 of a reputed school. Their class teacher bought _____ number of chocolate, so that she can distribute 2 chocolate to each students.

I am an Even number. I have 4 in the Tens place. I am lesser than 43. What number am I?

If water Teacher is Doctor, Doctor is Barber, Barber is Carpenter, Then who cuts our hair?

If a tank can hold 120 ltr of oil and it is 1/2 filled. Then how much  more oil needs to be poured to fill the tank?

Observe the figure carefully. There are certain number of boys and girls had eaten different types of foods as shown in this image. How Many Girls had eaten Chocolate, Pizza and ice-cream all together?

There are 25 bananas and 5 monkeys. If You have to distribute equally to each monkey, then how much bananas will 2 monkeys get together?

One fine evening, Mugdha & Ankita were talking to each other face to face. If Ankita's shadow was exactly to the right of Ankita, Which direction was Mugdha facing?

Madhubala is Mohit's Father's Wife. Ranu is Mohit's Sister. How is Ranu related to Madhubala?

A snail moves 50 inches in 5 minute. If it continue in same speed on this direction then, how far will it move in 6 minute?