Solve this logical number series puzzle by replacing the question mark with the correct number
9090 = 4
1234 = 0
6055 = 2
9081 = 4
8888 = ?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What am I?

How is the moon similar to a dollar?

How is a fly different from a mosquito?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

What is both possible and impossible at the same time?