Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

What do you think with the below Picture ?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

What has many teeth, but cannot bite?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?