There was an aeroplane crash, every single person died, but two people survived. How is this possible?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

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.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

You can hear me, but you can't touch or see me.

What am I?

Can you guess the name of the month by looking the below rebus ?

I look at you, you look at me, I raise my right, you raise your left. What am I?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?