Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

Replace the question mark with the number below given a simple math problem.

What number divided by 4 is the same as that number minus 4?

Which city is three-fifths chick two third cat and 50% goat?

Which is faster, Heat or Cold ? Explain.

With the help clues provided in the image, can you find the 5 digit key?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).