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

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

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

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

John was piloting a plane behind a car but was never able to overtake it. Why?

Find the last number in the series below:

voN luJ yaM raM ---

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?