What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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?

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

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Why is the Hole below a Lock?