Why Aeroplane windows are round?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Can you count the number of quadrilaterals in the picture below?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?