If eleven plus two equals one, what does nine plus five equal?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

what's the probability of getting a king or a queen from a pack of 52 cards?

I have branches, but no fruit, trunk or leaves. What am I?

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

Today is a very icy and cold morning in Newcastle. Mr Shearer, an office bus driver arrived to pick up the employees from the last stop. Shearer suddenly remembers that he needs to pick a newly joined 4miles to the north. Mr Shearer lost his direction compass, a few minutes later Shearer is able to figure that he is moving in the correct direction i.e. north. How did Shearer know that he is moving in the correct direction?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Count the Triangle in the figure given below: