What question can you never answer yes to?

What does an Island and the letter T have in common?

What word is pronounced the same if you take away four of its five letters?

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?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Decode below rebus
D
N
A
T
S , D

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What is full of holes but still holds water?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?