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?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

Count the number of triangles in the below picture?

Replace the question mark with the correct number in the below-given picture?

Decode below rebus
D
N
A
T
S , D

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

10+10 and 11+11 can give you the same answer.

Explain how?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?