Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What came first, the chicken or the egg?

Before Mount Everest was discovered, what was the highest mountain in the world?

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

If 21x = 79x, what is the value of x?

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?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

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?