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?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Solve the mathematical equation in the picture below.

can you solve the below rebus puzzle?

81 x 9 = 801. What must you do to make the this equation true?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What does below chemistry rebus means?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Rectify the following equality 101 - 102 = 1 by moving just one digit.