You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Find the number of squares in the below picture

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?