Prove that the below maths equation is true.

8 + 8 = 91

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

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?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Find the hidden tiger in the given optical illusion ?

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

What is the last thing you take off before bed?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?