Which five letter word can be added at the end of below word to form a
valid word?

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Find the value of "?" in the ball picture Riddle below:

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?

What can go up a chimney down, but can’t go down a chimney up?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Can you find out which options fits best with the missing column?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

Through your logical capabilities, can you make 7 an even?

The answer I give is yes, but what I mean is no. What was the question?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?