How do you go from 98 to 720 using just one letter?

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

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?