Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

There are forty elephants and they have forty-fore heads. How can this be possible?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Why are all black people so quick ?

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?