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?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

It belongs to you, but other people use it more than you do. What is it?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Solve this riddle by finding the odd one out from the rest.

I have Rs.50 and I spend it in the way as below.