I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

How many times do a clock's hands overlap in a day ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?