O_er_t_o_

Complete the missing letters of the given word.

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

Find the missing number in the image below.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can you find the six hidden animals in the picture below?

Who has married many women but was never married?