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

Can you make a six-letter word using the letters N, A and B ?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?