John is found dead in his office at his desk. The police have narrowed the suspects down to three people: Mrs. Jacob, John’s wife Hena and his business partner Jason . All three visited John on the day of his murder, but all three provide the police with stories of explanation as to the reason for their visit.
Police found John with his wrist watch still on his right arm, a torn up picture of his wife laying on the floor beside the trash can, and an ink pen in his right hand. On the desk, the police found a name plate, a telephone that was off the hook, and a personal calendar turned to the July 5th page with 7B91011 written on it. After examining this evidence, the police knew their suspect. Who was it ?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

What word is pronounced the same if you take away four of its five letters?

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.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

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

Can you find the number?

Decode below rebus
D
N
A
T
S , D

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag