What building has the most stories?

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?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

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

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

What happened when the wheel was invented?

With the help clues provided in the image, can you find the 5 digit key?