There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Complete the table series riddle by finding the number that can replace "??".

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

Replace the question mark with the number below given a simple math problem.

81 x 9 = 801. What must you do to make the this equation true?

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?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?