What is always in front of you but can’t be seen?

What is the coolest letter in the alphabet?

How do you go from 98 to 720 using just one letter?

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?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.