You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Which tank will fill first?

What has many teeth, but cannot bite?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Which is the smallest number that you can write using all the vowels exactly once?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?