What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Can you spot the hidden clock in this family photo? Only the most eagle-eyed will find it!

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Find the next number in the series below

21 32 54 87 131 ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

why number 8549176320 is one of a kind?

Why despite killing dozens of people Charley and Wilma were not punished?

You can see three almost identical images below. Can you spot the odd one out from them?