Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Can you identify the hidden rebus in the image below?

Can you find the hidden animal in the picture below?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

Aaron, Brad, Christopher, Danny and Elvis decided to play a game of tiddlywinks. In this game they decided that one win will get 1 point for winning, 0 for losing and 1/2 in case of a tie.

They finished the game in alphabetical order and it was found that the scores were different for each person.

Based on the following two statements, can you find out the result of the individual games?
Brad: No one could finish like me, without a loss.
Elvis: No one played worse than me, I finished without a single win.

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

If two's company, and three's a crowd, then whats four and five ?

The centre of the third figure is empty. What digit should fit inside?

Find the next number in the sequence

5 12 24 36 ?