Can you name some countries which do not have the alphabet 'A' in them?

Can you find the 09 errors in the picture below?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Identify The phrase in the picture.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?