What has many keys but can’t open a single lock?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

Find the number of squares in the below-given picture.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What does below chemistry rebus means?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

Make a sentence consisting of three words that have the whole alphabet.

Can you count the number of quadrilaterals in the picture below?

What do you see in the given picture?