Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

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 may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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

I’m orange, I wear a green hat and I sound like a parrot. What am I?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

What is the largest number you can write with just 3 digits?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?