What number comes next in the series?

5 15 5 18 5 24 14 20 _

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

If two's company, and three's a crowd, then whats four and five ?

What Deficiency does the below rebus represent?

VIT_MIN

You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.

Can you find out how many chocolates are there in P and Q respectively?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?