Solve the alphametic puzzle by replacing the alphabet with the number.

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I am white when I am dirty, and black when I am clean. What am I?

How many times can you subtract the number 5 from 25?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

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?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

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

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

What is so fragile that saying its name breaks it?