John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I don't get anymore wetter, no matter how much rain falls on me.

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

How can you make a TV, a bed, a dog, and a car liquid?

Be active and find the killer in the picture Riddle below.

Find the missing number in the sequence below: