Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Find the hidden tiger in the given optical illusion ?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

Can you replace the question mark with the correct number in the below table sequence?

Find the value of "?" in the ball picture Riddle below:

Decode this picture on T-Shirt and tell what it says ?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?