Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives. 850 : 863 : : 430 : ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
24 x 6 - 8 + 2 = ?

Select the related word/letters/numbers from the given alternatives. CURE : DISEASE :: HEAL : ?

In the following question, select the related word pair from the given alternatives. Lotus : Flower : : ? : ?

Teacher is related to Class in the same way Driver is related to

The distance between two cities is 30 Km. A man goes at a speed of 30 Km per hour and returns at 20 Km per hour. What is his average speed?

A man is facing east. He turns 60 degrees in the anticlockwise direction and then again turns another 120 degrees in the same direction. Which direction is he facing now?

Punit starting from point R walked straight 10 km west, then turned right and walked 12 km and again turned right and walked straight 7 km. In which direction is he from point R?