Two different positions of the same dice are shown having alphabets U to Z. Find the alphabet on the face opposite the face showing 'U'. 
To find the alphabet on the face opposite the face showing 'U', we need to analyze the positions of the dice shown in the images.

Here, we have two different positions of the same dice:
Let's identify common faces between the two positions:
Using this information, we can determine that:
Therefore, the alphabet on the face opposite to 'U' is X.
What would be the symbol on the opposite side of ‘@’ if the given sheet is folded to form a cube?

Six letters J, K, L, M, N and O are written on different faces of a dice. Two positions of this dice are shown in the figure below. Find the letter on the face opposite to J.
Six letters U, V, W, X, Y, and Z are written on different faces of a dice. Two positions of this dice are shown in the figure. Find the letter on the face opposite to V.
Six letters B, F, D, X, N, and A are written on different faces of a dice. Two positions of this dice are shown in the figures below. Find the letter on the face opposite to D.
Six letters G, H, I, J, K, and L are written on different faces of a dice. Two positions of this dice are shown in the figure below. Find the letter on the face opposite to G.