I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

I have branches, but no fruit, trunk or leaves. What am I?

Rearrange the letters in "new door" to make one word.

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

I am quite hot but become too cold if you remove the first two letters. What am I?