Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

Which number comes next in the number series?

2, 9, 30, 93, ?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Replace the question mark with the correct number in the below-given picture?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?