If 1+9+8=1, what is 2+8+9?

There is a place where if I stand up straight, I will still be considered sideways.

Find the missing letter in the last circle logically in the given below picture.

How many letters are in the alphabet?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

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?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?