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?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

You can hear me, but you can't touch or see me.

What am I?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

What is black when you buy it, red when you use it, and gray when you throw it away?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

What does this Rebus Picture means ?

Can you count the number of quadrilaterals in the picture below?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?