Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Which of the below owl is odd one out?

Prove that twice of ten is the same as twice of eleven.

In the image given, you can find several triangles. Can you count them all?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

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.

Buy me, smell me or deliver me, I do not change.

Who am I?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Find out the number of circles in the given picture having Illusion

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?