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

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

Why is a river so rich ?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

My location can be determined by the below rebus.
So where am i ?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?