Our product and our sum always give the same answer. Who are we?

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

What country can make you shiver?

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.