I have branches, but no fruit, trunk or leaves. What am I?

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

How many times can you subtract the number two from the number fifty?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Forwards I am heavy, backward I am not. What am I?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Prove that the below maths equation is true.

8 + 8 = 91