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?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I have a sore throat and a severe headache. I have four tablets with me that are identical to each other and they do not have any cover on them. There is no way I can identify which tablet serves what purpose. The only thing that I know is that two of these four tablets are for the throat and the remaining two are for the headache. To treat my condition, I must take 1 of each. What will I do now?

Which is the smallest number that you can write using all the vowels exactly once?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

Identify the 10 differences between the two given pictures.

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?