I can write cow in 13 letters.

Can You?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

When can we add 2 to 11 and get 1 as the correct answer?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What does it mean?