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

O T T F F S S ?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

Can you count the number of triangles in the given picture?

In the image given, you can find several triangles. Can you count them all?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?