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

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

What four weights can be used to balance from 1 to 30 pounds?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

What number divided by 4 is the same as that number minus 4?

If six children and two dogs were under an umbrella, how come none of them got wet?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?