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?

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

Before Mount Everest was discovered, what was the highest mountain in the world?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

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

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

If a wheel has 54 spokes, how many spaces are there between the spokes?