There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

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?

What's the only room from which no one can enter or leave

I have eight fingers and two thumbs but I do not live. What Am I?

If 1+9+8=1, what is 2+8+9?

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

On a bright sunny day, two fathers took their son fishing in the lake. Each man and son were able to catch one fish. When they returned to their camp, there were only three fishes in the basket. What happened?

PS: None of the fish were eaten, lost, or thrown back.

What number comes next in the series?

5 15 5 18 5 24 14 20 _