Solve the mathematical equation in the picture below.

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Which is the correct shadow of the bird?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?