What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

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

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

Find the 8 in the below-given Image.

What does this rebus means ?

PROG WORKRESS

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?

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.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?